www-client/firefox: toggle real-time-tracing configure option

- this will spam your terminal and dmesg with video/audio debug messages.
   And I emphasize the spam part.

Signed-off-by: Joonas Niilola <juippis@gentoo.org>

www-client/firefox/firefox-109.0.ebuild

@@ -736,13 +736,13 @@ src_configure() {
 		--disable-gpsd \
 		--disable-install-strip \
 		--disable-parental-controls \
+		--disable-real-time-tracing \
 		--disable-strip \
 		--disable-tests \
 		--disable-updater \
 		--enable-negotiateauth \
 		--enable-new-pass-manager \
 		--enable-official-branding \
-		--enable-real-time-tracing \
 		--enable-release \
 		--enable-system-ffi \
 		--enable-system-pixman \