Reverted the usage of OSG_UNUSED and OT_UNUSED as in hindsight these should never have been merged. Adding code to quieten

inappropriate warnings is a bad programming practice and does not desrve a place in the OSG code base.

src/osgWidget/Input.cpp

@@ -94,8 +94,6 @@ void Input::_calculateSize(const XYCoord& size) {
    if(width > getWidth()) setWidth(osg::round(width));
 
    if(height > getHeight()) setHeight(osg::round(height));
-#else
-    OSG_UNUSED(size);
 #endif
 }
 
@@ -283,11 +281,11 @@ void Input::positioned()
     }
 }
 
-bool Input::keyUp(int /*key*/, int /*mask*/, const WindowManager*) {
+bool Input::keyUp(int key, int mask, const WindowManager*) {
    return false;
 }
 
-bool Input::mouseDrag (double x, double /*y*/, const WindowManager*)
+bool Input::mouseDrag (double x, double y, const WindowManager*)
 {
     _mouseClickX += x;
     x = _mouseClickX;
@@ -308,7 +306,7 @@ bool Input::mouseDrag (double x, double /*y*/, const WindowManager*)
     return true;
 }
 
-bool Input::mousePush (double x, double /*y*/, const WindowManager* /*wm*/)
+bool Input::mousePush (double x, double y, const WindowManager* wm)
 {
     double offset = getOrigin().x();
     Window* window = getParent();

src/osgWidget/Lua.cpp

@@ -142,7 +142,6 @@ bool LuaEngine::eval(const std::string& code) {
     return true;
 
 #else
-    OSG_UNUSED(code);
     return noLuaFail("Can't evaluate code in LuaEngine");
 #endif
 }
@@ -164,7 +163,6 @@ bool LuaEngine::runFile(const std::string& filePath) {
     return true;
 
 #else
-    OSG_UNUSED(filePath);
     return noLuaFail("Can't run file in LuaEngine");
 #endif
 }

src/osgWidget/Python.cpp

@@ -156,7 +156,6 @@ bool PythonEngine::eval(const std::string& code) {
     return true;
 
 #else
-    OSG_UNUSED(code);
     return noPythonFail("Can't evaluate code in PythonEngine");
 #endif
 }
@@ -208,7 +207,6 @@ bool PythonEngine::runFile(const std::string& filePath) {
     return true;
 
 #else
-    OSG_UNUSED(filePath);
     return noPythonFail("Can't evaluate code in PythonEngine");
 #endif
 }