Revert "Changes for assignment 2"

This reverts commit 8d2bdbe9d8.

src/program.cpp

@@ -27,10 +27,6 @@ void runProgram(GLFWwindow* window, CommandLineOptions options)
     // Disable built-in dithering
     glDisable(GL_DITHER);
 
-    // Enable transparency
-    glEnable(GL_BLEND);
-    glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
-
     // Set default colour after clearing the colour buffer
     glClearColor(0.3f, 0.5f, 0.8f, 1.0f);