Revert "winemac.drv: Actually make the GL context current even if no drawables were given.".

dlls/winemac.drv/cocoa_opengl.m

@@ -227,18 +227,15 @@ void macdrv_make_context_current(macdrv_opengl_context c, macdrv_view v)
     {
         WineOpenGLContext* currentContext = (WineOpenGLContext*)[WineOpenGLContext currentContext];
 
-        [context removeFromViews:YES];
-
-        if (currentContext != context)
+        if ([currentContext isKindOfClass:[WineOpenGLContext class]])
         {
-            if (context)
-                [context makeCurrentContext];
-            else
-                [WineOpenGLContext clearCurrentContext];
-
-            if ([currentContext isKindOfClass:[WineOpenGLContext class]])
+            [WineOpenGLContext clearCurrentContext];
+            if (currentContext != context)
                 [currentContext removeFromViews:YES];
         }
+
+        if (context)
+            [context removeFromViews:YES];
     }
 
     [pool release];

dlls/winemac.drv/opengl.c

@@ -3057,13 +3057,7 @@ static BOOL macdrv_wglMakeContextCurrentARB(HDC draw_hdc, HDC read_hdc, struct w
         return TRUE;
     }
 
-    if (!draw_hdc && !read_hdc)
-    {
-        context->draw_hwnd = NULL;
-        context->draw_view = NULL;
-        context->draw_pbuffer = NULL;
-    }
-    else if ((hwnd = WindowFromDC(draw_hdc)))
+    if ((hwnd = WindowFromDC(draw_hdc)))
     {
         if (!(data = get_win_data(hwnd)))
         {