Moves the AddSetting sound calls from CButton and CCheckbox to
IGUIButtonBehavior, since the latter is the only class to use them.
Moves ChooseColor from IGUIButtonBehavior to CButton, since that's the
only class to use it and the only class registering the dependent
Settings following b1422137e5 (refs d412b2010b / D2314)
Initialize m_PressedRight in the constructor to prevent undefined
behavior in possible future code following 0d204037b6, refs #1028.
Remove unused soundPath variable following 0e26503cc6 / D2209.
Differential Revision: https://code.wildfiregames.com/D2318
Tested on: clang 8.0.1, Jenkins
This was SVN commit r22969.
elexis
7bb0f2ea69