Fixes GLES and compilation warnings.

This was SVN commit r26492.

source/renderer/SilhouetteRenderer.cpp

@@ -444,7 +444,7 @@ void SilhouetteRenderer::RenderSubmitCasters(SceneCollector& collector)
 }
 
 void SilhouetteRenderer::RenderDebugBounds(
-	Renderer::Backend::GL::CDeviceCommandContext* deviceCommandContext)
+	Renderer::Backend::GL::CDeviceCommandContext* UNUSED(deviceCommandContext))
 {
 	if (m_DebugBounds.empty())
 		return;

source/renderer/TerrainOverlay.cpp

@@ -257,7 +257,6 @@ void TerrainOverlay::RenderTileOutline(
 #if CONFIG2_GLES
 	UNUSED2(deviceCommandContext);
 	UNUSED2(color);
-	UNUSED2(lineWidth);
 	UNUSED2(drawHidden);
 	UNUSED2(i);
 	UNUSED2(j);