Removes call to std::unique_ptr::release that discards the returned pointer. This caused a leak when a Renderable which already has an image loaded tries to load an image, but fails to do so.

Author: Gusgo99

olcPixelGameEngine.h

@@ -2147,7 +2147,6 @@ namespace olc
 		}
 		else
 		{
-			pSprite.release();
 			pSprite = nullptr;
 			return olc::rcode::NO_FILE;
 		}