Cleanup (removing unused variables & other redundancies, rethrowing exceptions instead of wrapping them in a new exception instance)

Subsurface/Source/Screens/EditMapScreen.cs

@@ -960,7 +960,6 @@ namespace Barotrauma
         /// Allows the game to run logic such as updating the world,
         /// checking for collisions, gathering input, and playing audio.
         /// </summary>
-        /// <param name="gameTime">Provides a snapshot of timing values.</param>
         public override void Update(double deltaTime)
         {
             if (tutorial != null) tutorial.Update((float)deltaTime);
@@ -1085,7 +1084,6 @@ namespace Barotrauma
         /// <summary>
         /// This is called when the game should draw itself.
         /// </summary>
-        /// <param name="gameTime">Provides a snapshot of timing values.</param>
         public override void Draw(double deltaTime, GraphicsDevice graphics, SpriteBatch spriteBatch)
         {
             cam.UpdateTransform();