Removed CC65_ prefixes from exit statements in abort and assert code as well from definition

libsrc/geos-common/common/_afailed.c

@@ -29,5 +29,5 @@ void _afailed (char* file, unsigned line)
 
     DlgBoxOk(CBOLDON "ASSERTION FAILED", "PROGRAM TERMINATED" CPLAINTEXT);
 
-    exit (CC65_EXIT_AFAILED);
+    exit (EXIT_ASSERT);
 }

libsrc/geos-common/common/abort.c

@@ -12,5 +12,5 @@ void abort (void)
 {
     ExitTurbo();
     DlgBoxOk(CBOLDON "ABNORMAL PROGRAM", "TERMINATION." CPLAINTEXT);
-    exit(CC65_EXIT_ABORT);
+    exit(EXIT_ABORT);
 }