Bug 1901299 - Remove gkcodecs from SeaMonkey installer. r=frg

Port bug 1823953 "Use libvorbis though ffmpeg (packaging change)".

suite/installer/package-manifest.in

@@ -126,6 +126,7 @@
 @BINPATH@/@DLL_PREFIX@mozsqlite3@DLL_SUFFIX@
 #endif
 @BINPATH@/@DLL_PREFIX@lgpllibs@DLL_SUFFIX@
+@BINPATH@/@DLL_PREFIX@gkcodecs@DLL_SUFFIX@
 #ifdef MOZ_FFVPX
 @BINPATH@/@DLL_PREFIX@mozavutil@DLL_SUFFIX@
 @BINPATH@/@DLL_PREFIX@mozavcodec@DLL_SUFFIX@