Remove obsolete stuffs

bin/git/usr/share/vim/vim91/syntax/coco.vim

@@ -0,0 +1,33 @@
+" Vim syntax file
+" Language:     Coco/R
+" Maintainer:   Ashish Shukla <wahjava@gmail.com>
+" Last Change:  2022 Jun 14
+" Remark:       Coco/R syntax partially implemented.
+" License:      Vim license
+
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
+	finish
+endif
+
+syn keyword cocoKeywords ANY CHARACTERS COMMENTS COMPILER CONTEXT END FROM IF IGNORE IGNORECASE NESTED PRAGMAS PRODUCTIONS SYNC TO TOKENS WEAK
+syn match   cocoUnilineComment    #//.*$#
+syn match   cocoIdentifier        /[[:alpha:]][[:alnum:]]*/
+syn region  cocoMultilineComment  start=#/[*]# end=#[*]/#
+syn region  cocoString            start=/"/ skip=/\\"\|\\\\/ end=/"/
+syn region  cocoCharacter         start=/'/ skip=/\\'\|\\\\/ end=/'/
+syn match   cocoOperator          /+\||\|\.\.\|-\|(\|)\|{\|}\|\[\|\]\|=\|<\|>/
+syn region  cocoProductionCode    start=/([.]/ end=/[.])/
+syn match   cocoPragma            /[$][[:alnum:]]*/
+
+hi def link cocoKeywords         Keyword
+hi def link cocoUnilineComment   Comment 
+hi def link cocoMultilineComment Comment
+hi def link cocoIdentifier       Identifier
+hi def link cocoString           String
+hi def link cocoCharacter        Character
+hi def link cocoOperator         Operator
+hi def link cocoProductionCode   Statement
+hi def link cocoPragma           Special
+
+let b:current_syntax = 'coco'