[vim] Remove pandoc plugin

.gitmodules

@@ -1,6 +1,3 @@
-[submodule ".vim/bundle/vim-pandoc"]
-	path = .vim/bundle/vim-pandoc
-	url = git://github.com/vim-pandoc/vim-pandoc.git
 [submodule ".vim/bundle/vim-textobj-user"]
 	path = .vim/bundle/vim-textobj-user
 	url = git://github.com/kana/vim-textobj-user.git
@@ -58,9 +55,6 @@
 [submodule ".vim/bundle/vim-tmux-navigator"]
 	path = .vim/bundle/vim-tmux-navigator
 	url = git://github.com/christoomey/vim-tmux-navigator.git
-[submodule ".vim/bundle/vim-pandoc-syntax"]
-	path = .vim/bundle/vim-pandoc-syntax
-	url = git://github.com/vim-pandoc/vim-pandoc-syntax.git
 [submodule "src/powerline"]
 	path = src/powerline
 	url = git://github.com/powerline/powerline.git

.vim/bundle/vim-pandoc

@@ -1 +0,0 @@
-Subproject commit cca2326046fd9bf44276e6d44f106c90d80eca25

.vim/bundle/vim-pandoc-syntax

@@ -1 +0,0 @@
-Subproject commit eaf2507e0bd51ec06bc111777376b21da7340d5d