Deleted unreleated files, and fixed inconsistencies

Author: utam-1

cobc/ChangeLog

@@ -1,11 +1,11 @@
 
 2026-03-16  Uttam Singh Bhadauriya <uttamsinghbhadoriya23@gmail.com>
 
-	* cobc/pplex.l: add EXEC_STATE exclusive start condition to
+	* pplex.l: add EXEC_STATE exclusive start condition to
 	  tokenize EXEC <TAG> ... END-EXEC blocks; add AREA_A lookahead
 	  rule for EXEC; return INCLUDE token for INCLUDE keyword,
 	  plain TOKEN for words; consume all other content silently
-	* cobc/ppparse.y: add exec_statement grammar rule dispatched
+	* ppparse.y: add exec_statement grammar rule dispatched
 	  from statement_no_replace; EXEC TAG INCLUDE handled as COPY
 	  (full copybook expansion with -I and -ffold-copy support);
 	  all other EXEC TAG blocks warn at "unsupported" level

cobc/ppparse.y

@@ -754,7 +754,7 @@ ppparse_clear_vars (const struct cb_define_struct *p)
 %token <s> LITERAL		"Literal"
 
 %token EXEC
-%token END_EXEC
+%token END_EXEC "END_EXEC"
 
 %type <s>	_copy_in
 %type <s>	copy_source

tests/Makefile.am

@@ -30,7 +30,6 @@ testsuite_sources = \
 	testsuite.src/used_binaries.at \
 	testsuite.src/configuration.at \
 	testsuite.src/syn_copy.at \
-	testsuite.src/syn_extensions.at \
 	testsuite.src/syn_definition.at \
 	testsuite.src/syn_file.at \
 	testsuite.src/syn_functions.at \

tests/test84.c

@@ -37,7 +37,6 @@ m4_include([configuration.at])
 AT_BANNER([Syntax tests])
 
 m4_include([syn_copy.at])
-m4_include([syn_extensions.at])
 m4_include([syn_definition.at])
 m4_include([syn_subscripts.at])		# 8.4.1.2 Subscripts
 m4_include([syn_occurs.at])		# 13.16.36 OCCURS clause