Remove usages of FirstPersonControls.noFly (#26374)

examples/webaudio_sandbox.html

@@ -227,7 +227,6 @@
 
 				controls.movementSpeed = 70;
 				controls.lookSpeed = 0.05;
-				controls.noFly = true;
 				controls.lookVertical = false;
 
 				//

examples/webgl_shadowmap.html

@@ -127,7 +127,6 @@
 
 				controls.lookSpeed = 0.0125;
 				controls.movementSpeed = 500;
-				controls.noFly = false;
 				controls.lookVertical = true;
 
 				controls.lookAt( scene.position );

examples/webgl_shadowmap_performance.html

@@ -121,7 +121,6 @@
 
 				controls.lookSpeed = 0.0125;
 				controls.movementSpeed = 500;
-				controls.noFly = false;
 				controls.lookVertical = true;
 
 				controls.lookAt( scene.position );