fix: use default completion for git rename-file

Author: danpaolella

etc/bash_completion.sh

@@ -176,10 +176,6 @@ _git_rename_branch(){
   fi
 }
 
-_git_rename_file() {
-  __gitcomp "-h --help"
-}
-
 _git_rename_remote(){
   if ((COMP_CWORD == 2 || COMP_CWORD == 3)); then
     __gitcomp "$(__git_remotes)"