How do you uninstall deleted files installed by git clone command?

I heard about the awesomeness of vim, so naturally I said “vim me up”. After, countless Youtube videos and Googling for hours, I was ready to install my pluggins ( so I thought). I was able to install NERDTree thru Pathogen and I was feeling good about myself since I’m new to Mac(OSX 10.9) and coding in general. So, I then proceeded to install the next pluggin Snipmate using instructions from https://github.com/garbas/vim-snipmate

% cd ~/.vim/bundle
% git clone https://github.com/tomtom/tlib_vim.git
% git clone https://github.com/MarcWeber/vim-addon-mw-utils.git
% git clone https://github.com/garbas/vim-snipmate.git
% git clone https://github.com/honza/vim-snippets.git

Snipmate did not work. So, I deleted these directories by rm -rf {directories}
then tried to install it again using instructions from http://spf13.com/post/vim-plugins-snipmate this time

cd ~/.vim
mv snippets snippets.orig
git clone git://github.com/scrooloose/snipmate-snippets.git snippets

Maybe I shouldn’t have done since I now have these errors everytime I open vim.

Warning in snipMate.vim: Snippet c) is already defined. See :h multi_snip for help on snippets with multiple matches.
Warning in snipMate.vim: Snippet date is already defined. See :h multi_snip for help on snippets with multiple matches.
Warning in snipMate.vim: Snippet ddate is already defined. See :h multi_snip for help on snippets with multiple matches.

Do you think if I could uninstall those files, that I had deleted, would it rid of these errors and maybe snipmate would work?
How do you uninstall git clone command? Am I right in thinking these?

Git Baby is a git and github fan, let's start git clone.