Remvoed checks for typed array support in the test suite

All supported browsers have all typed arrays except for Uint8ClampedArray,
BigInt64Array, and BigUint64Array.

spec/helpers/checkForArrayBuffer.js

@@ -17,7 +17,6 @@
   }
 
   env.requireFunctioningArrayBuffers = function() {
-    env.requireFunctioningTypedArrays();
     if (!hasFunctioningArrayBuffers()) {
       env.pending('Browser has incomplete or missing support for ArrayBuffer');
     }