tweaks: remove an unneeded pre-processor '#else' clause

Commit 1e2e6733 added braces and made the semicolon no longer needed
when libmagic is not used.

Signed-off-by: Brand Huntsman <alpha@qzx.com>

src/rcfile.c

@@ -1080,8 +1080,6 @@ void parse_rcfile(FILE *rcstream, bool syntax_only, bool headers_only)
 #ifdef HAVE_LIBMAGIC
 			if (headers_only || !syntax_only)
 				grab_and_store("magic", ptr, &live_syntax->magics);
-#else
-			;
 #endif
 		} else if (headers_only)
 			break;