Get rid of unused stuff on fragment shader for Lesson 10
Get rid of unused stuff on fragment shader for Lesson 10

Fortunately, things that wont be missed.

TheFakeMontyOnTheRun/nehe-ndk-gles20,TheFakeMontyOnTheRun/nehe-ndk-gles20,TheFakeMontyOnTheRun/nehe-ndk-gles20