Get rid of a bunch of unused variables.

("Unused" includes "set but not used".)

Change-Id: Id67859b366e8caa50262f8530630ec4e8ef1507a
Reviewed-on: https://code.wireshark.org/review/12457
Reviewed-by: Guy Harris <guy@alum.mit.edu>

wiretap/ascend-int.h

@@ -27,8 +27,6 @@
 #include <glib.h>
 #include "ws_symbol_export.h"
 
-extern int at_eof;
-
 extern const gchar *ascend_parse_error;
 
 /*

wiretap/ascend.y

@@ -434,7 +434,6 @@ datagroup: dataln
 void
 init_parse_ascend(void)
 {
-  at_eof = 0;
   start_time = 0;	/* we haven't see a date/time yet */
 }
 

wiretap/ascend_scanner.l

@@ -48,14 +48,9 @@
 #include "ascend_scanner_lex.h"
 
 FILE_T yy_fh;
-extern char *ascend_ra_ptr;
-extern char *ascend_ra_last;
 #define YY_INPUT(buf,result,max_size) { int c = file_getc(yy_fh);  \
 result = (c==EOF) ? YY_NULL : (buf[0] = c, 1); }
 
-int at_eof;
-int mul, scratch;
-
 #define NO_USER "<none>"
 
 #ifndef HAVE_UNISTD_H
@@ -332,7 +327,7 @@ WDD_TYPE    "type "[^\n\r\t ]+
 
 task:|task|at|time:|octets { return KEYWORD; }
 
-<<EOF>> { at_eof++; yyterminate(); }
+<<EOF>> { yyterminate(); }
 
 (.|\n) ;