Revert "Ticket #1987: added Cobol syntax highlighting."

This reverts commit a8d75fce1e60838b46b2da5919ddeacf2448b3c9.

The Cobol syntax description in misc/syntax/Syntax file
breaks highlighting of other syntaxes.

Signed-off-by: Andrew Borodin <aborodin@vmail.ru>

misc/syntax/Makefile.am

@@ -7,7 +7,6 @@ SYNTAXFILES =			\
 	c.syntax		\
 	cabal.syntax		\
 	changelog.syntax	\
-	cobol.syntax		\
 	cs.syntax		\
 	css.syntax		\
 	cxx.syntax		\

misc/syntax/Syntax

@@ -43,9 +43,6 @@ include sh.syntax
 file ..\*\\.(pl|PL|pm|PM)$ Perl\sProgram ^#!.\*([\s/]perl|@PERL@)
 include perl.syntax
 
-file ..\*\\.(cbl|CBL)$ Cobol\sProgram ^ PHASE.\*)
-include cobol.syntax
-
 file ..\*\\.(py|PY)$ Python\sProgram ^#!.\*([\s/]python|@PYTHON@)
 include python.syntax