diff --git a/lib/git.sh b/lib/git.sh
index 2ca5fe77ca3150a65cec9e8640ef2b6271efdc3d..5d3096ee2ddd4161d69be36b4ef885334caab312 100644
--- a/lib/git.sh
+++ b/lib/git.sh
@@ -217,4 +217,4 @@ function git_current_user_email() {
 # This is unlikely to change so make it all statically assigned
 #POST_1_7_2_GIT=$(git_compare_version "1.7.2")
 # Clean up the namespace slightly by removing the checker function
-#unfunction git_compare_version
+#unset -f git_compare_version
diff --git a/lib/grep.sh b/lib/grep.sh
deleted file mode 100644
index c3a219219079ef8073c55088b68616dd5147683f..0000000000000000000000000000000000000000
--- a/lib/grep.sh
+++ /dev/null
@@ -1,28 +0,0 @@
-# is x grep argument available?
-grep-flag-available() {
-    echo | grep $1 "" >/dev/null 2>&1
-}
-
-GREP_OPTIONS=""
-
-# color grep results
-if grep-flag-available --color=auto; then
-    GREP_OPTIONS+=" --color=auto"
-fi
-
-# ignore VCS folders (if the necessary grep flags are available)
-VCS_FOLDERS="{.bzr,CVS,.git,.hg,.svn}"
-
-if grep-flag-available --exclude-dir=.cvs; then
-    GREP_OPTIONS+=" --exclude-dir=$VCS_FOLDERS"
-elif grep-flag-available --exclude=.cvs; then
-    GREP_OPTIONS+=" --exclude=$VCS_FOLDERS"
-fi
-
-# export grep settings
-alias grep="grep $GREP_OPTIONS"
-
-# clean up
-unset GREP_OPTIONS
-unset VCS_FOLDERS
-#unfunction grep-flag-available