V2x|Build: cc_binary for main.cc

modules/v2x/BUILD

-load("//tools:cpplint.bzl", "cpplint")
-
 package(default_visibility = ["//visibility:public"])
-
-cc_binary(
-    name = "v2x",
-    deps = [
-        "//modules/v2x/v2x_proxy/app:v2x_proxy_lib",
-    ],
-)
-
-cpplint()

modules/v2x/v2x_proxy/app/BUILD

-load("@rules_cc//cc:defs.bzl", "cc_library")
+load("@rules_cc//cc:defs.bzl", "cc_binary", "cc_library")
 load("//tools:cpplint.bzl", "cpplint")
 
 package(default_visibility = ["//visibility:public"])
 
 cc_library(
-    name = "v2x_proxy_lib",
-    srcs = [
-        "main.cc",
-        "v2x_proxy.cc",
-    ],
+    name = "v2x_proxy",
+    srcs = ["v2x_proxy.cc"],
     hdrs = ["v2x_proxy.h"],
     deps = [
         "//modules/map/hdmap",
@@ -17,4 +14,12 @@ cc_library(
     ],
 )
 
+cc_binary(
+    name = "v2x",
+    srcs = ["main.cc"],
+    deps = [
+        ":v2x_proxy",
+    ],
+)
+
 cpplint()