diff --git a/news/7554.removal.rst b/news/7554.removal.rst
new file mode 100644
index 0000000000000000000000000000000000000000..d5037d5fdb9aadb5f89ac502e8eddac76e3b0cbc
--- /dev/null
+++ b/news/7554.removal.rst
@@ -0,0 +1,2 @@
+Remove support for VCS pseudo URLs editable requirements. It was emitting
+deprecation warning since version 20.0.
diff --git a/src/pip/_internal/req/constructors.py b/src/pip/_internal/req/constructors.py
index 5a8f0666ca2b24b90c64b253674c97d58a9d5dcd..6c223cd79947db45129e57ca6e96120753777a9c 100644
--- a/src/pip/_internal/req/constructors.py
+++ b/src/pip/_internal/req/constructors.py
@@ -115,7 +115,9 @@ def parse_editable(editable_req):
             url = f'{version_control}+{url}'
             break
 
-    if '+' not in url:
+    link = Link(url)
+
+    if not link.is_vcs:
         backends = ", ".join([backend.name + '+' for backend in vcs.backends])
         raise InstallationError(
             f'{editable_req} is not a valid editable requirement. '
@@ -123,16 +125,7 @@ def parse_editable(editable_req):
             f'(beginning with {backends}).'
         )
 
-    vc_type = url.split('+', 1)[0].lower()
-
-    if not vcs.get_backend(vc_type):
-        backends = ", ".join([bends.name + '+URL' for bends in vcs.backends])
-        error_message = "For --editable={}, " \
-                        "only {} are currently supported".format(
-                            editable_req, backends)
-        raise InstallationError(error_message)
-
-    package_name = Link(url).egg_fragment
+    package_name = link.egg_fragment
     if not package_name:
         raise InstallationError(
             "Could not detect requirement name for '{}', please specify one "
diff --git a/src/pip/_internal/req/req_install.py b/src/pip/_internal/req/req_install.py
index 11d000df503575765a4892888d698153e6eb04f3..6d0aa30b418b0753909b9d1129347a8fe9bff820 100644
--- a/src/pip/_internal/req/req_install.py
+++ b/src/pip/_internal/req/req_install.py
@@ -625,31 +625,12 @@ class InstallRequirement:
         if self.link.scheme == 'file':
             # Static paths don't get updated
             return
-        assert '+' in self.link.url, \
-            "bad url: {self.link.url!r}".format(**locals())
-        vc_type, url = self.link.url.split('+', 1)
-        vcs_backend = vcs.get_backend(vc_type)
-        if vcs_backend:
-            if not self.link.is_vcs:
-                reason = (
-                    "This form of VCS requirement is being deprecated: {}."
-                ).format(
-                    self.link.url
-                )
-                replacement = None
-                if self.link.url.startswith("git+git@"):
-                    replacement = (
-                        "git+https://git@example.com/..., "
-                        "git+ssh://git@example.com/..., "
-                        "or the insecure git+git://git@example.com/..."
-                    )
-                deprecated(reason, replacement, gone_in="21.0", issue=7554)
-            hidden_url = hide_url(self.link.url)
-            vcs_backend.obtain(self.source_dir, url=hidden_url)
-        else:
-            assert 0, (
-                'Unexpected version control type (in {}): {}'.format(
-                    self.link, vc_type))
+        vcs_backend = vcs.get_backend_for_scheme(self.link.scheme)
+        # Editable requirements are validated in Requirement constructors.
+        # So here, if it's neither a path nor a valid VCS URL, it's a bug.
+        assert vcs_backend, f"Unsupported VCS URL {self.link.url}"
+        hidden_url = hide_url(self.link.url)
+        vcs_backend.obtain(self.source_dir, url=hidden_url)
 
     # Top-level Actions
     def uninstall(self, auto_confirm=False, verbose=False):
diff --git a/src/pip/_internal/vcs/bazaar.py b/src/pip/_internal/vcs/bazaar.py
index 3c9c8a47930b78bd3d701317a88766e0298ccff9..2e82134992ec28b82310e05af8a82c0089e697f2 100644
--- a/src/pip/_internal/vcs/bazaar.py
+++ b/src/pip/_internal/vcs/bazaar.py
@@ -26,7 +26,7 @@ class Bazaar(VersionControl):
     repo_name = 'branch'
     schemes = (
         'bzr', 'bzr+http', 'bzr+https', 'bzr+ssh', 'bzr+sftp', 'bzr+ftp',
-        'bzr+lp',
+        'bzr+lp', 'bzr+file'
     )
 
     @staticmethod
diff --git a/src/pip/_internal/vcs/subversion.py b/src/pip/_internal/vcs/subversion.py
index f397c427e67ee0ffdc4e272be55bc5c4667d916d..54d616485a6f26cf078db9d299ac488cebacfa08 100644
--- a/src/pip/_internal/vcs/subversion.py
+++ b/src/pip/_internal/vcs/subversion.py
@@ -37,7 +37,9 @@ class Subversion(VersionControl):
     name = 'svn'
     dirname = '.svn'
     repo_name = 'checkout'
-    schemes = ('svn', 'svn+ssh', 'svn+http', 'svn+https', 'svn+svn')
+    schemes = (
+        'svn', 'svn+ssh', 'svn+http', 'svn+https', 'svn+svn', 'svn+file'
+    )
 
     @classmethod
     def should_add_vcs_url_prefix(cls, remote_url):
diff --git a/tests/functional/test_install_vcs_git.py b/tests/functional/test_install_vcs_git.py
index 4c26d8e88ac7d6c08448831f33b63aacda273b2c..afd6ffae0554bd415312144dd27073a2cb9f8d22 100644
--- a/tests/functional/test_install_vcs_git.py
+++ b/tests/functional/test_install_vcs_git.py
@@ -1,5 +1,6 @@
 import pytest
 
+from pip._internal.utils.urls import path_to_url
 from tests.lib import pyversion  # noqa: F401
 from tests.lib import (
     _change_test_package_version,
@@ -454,7 +455,7 @@ def test_check_submodule_addition(script):
     )
 
     install_result = script.pip(
-        'install', '-e', 'git+' + module_path + '#egg=version_pkg'
+        'install', '-e', 'git+' + path_to_url(module_path) + '#egg=version_pkg'
     )
     install_result.did_create(
         script.venv / 'src/version-pkg/testpkg/static/testfile'
@@ -467,7 +468,7 @@ def test_check_submodule_addition(script):
 
     # expect error because git may write to stderr
     update_result = script.pip(
-        'install', '-e', 'git+' + module_path + '#egg=version_pkg',
+        'install', '-e', 'git+' + path_to_url(module_path) + '#egg=version_pkg',
         '--upgrade',
     )