Remove unnecessary call.

GUI_SET_MIXER will be called by MPlayer early enough before rendering.


git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@37039 b3059339-0415-0410-9bf9-f77b7e298cf2
Remove pointless condition.

It's always true.

As a result, relocate the variable declarations.


git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@37040 b3059339-0415-0410-9bf9-f77b7e298cf2
Cosmetic: Adjust indent.


git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@37041 b3059339-0415-0410-9bf9-f77b7e298cf2
Cosmetic: Rename GUI_SET_MIXER GUI_SET_VOLUME_BALANCE.

It's not the mixer the GUI is interested in.


git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@37042 b3059339-0415-0410-9bf9-f77b7e298cf2