cli: remove --version to --modversion remapping

This has been a source of frequent complaints, so we drop it.
Resolves: https://todo.sr.ht/~kaniini/pkgconf/6

cli/main.c

@@ -1004,20 +1004,10 @@ main(int argc, char *argv[])
 	}
 
 	if ((want_flags & PKG_VERSION) == PKG_VERSION)
-	{
-		if (argc > 2)
-		{
-			fprintf(stderr, "%s: --version specified with other options or module names, assuming --modversion.\n", argv[0]);
-
-			want_flags &= ~PKG_VERSION;
-			want_flags |= PKG_MODVERSION;
-		}
-		else
 	{
 		version();
 		return EXIT_SUCCESS;
 	}
-	}
 
 	if ((want_flags & PKG_HELP) == PKG_HELP)
 	{