Remove graphql syntax as it causes issues, closes #236

ftplugin/graphql.vim

@@ -1,17 +0,0 @@
-if !exists('g:polyglot_disabled') || index(g:polyglot_disabled, 'graphql') == -1
-  
-" Vim filetype plugin
-" Language: GraphQL
-" Maintainer: Jon Parise <jon@indelible.org>
-
-if (exists('b:did_ftplugin'))
-  finish
-endif
-let b:did_ftplugin = 1
-
-setlocal comments=:#
-setlocal commentstring=#\ %s
-setlocal formatoptions-=t
-setlocal iskeyword+=$,@-@
-
-endif