Revert of Add errors for declarations which conflict with catch parameters.

test/mjsunit/es6/block-sloppy-function.js

Index: test/mjsunit/es6/block-sloppy-function.js
diff --git a/test/mjsunit/es6/block-sloppy-function.js b/test/mjsunit/es6/block-sloppy-function.js
index 9a854ac272714ed307d2cd264f935508b639080f..e5f244774f673942a382c66703865ee33dfe758d 100644
--- a/test/mjsunit/es6/block-sloppy-function.js
+++ b/test/mjsunit/es6/block-sloppy-function.js
@@ -453,45 +453,6 @@
   }
 
   assertEquals(4, f());
-})();
-
-// B.3.5 interacts with B.3.3 to allow this.
-(function hoistingThroughSimpleCatch() {
-  assertEquals(undefined, f);
-
-  try {
-    throw 0;
-  } catch(f) {
-    {
-      assertEquals(4, f());
-
-      function f() {
-        return 4;
-      }
-
-      assertEquals(4, f());
-    }
-  }
-
-  assertEquals(4, f());
-})();
-
-(function noHoistingThroughComplexCatch() {
-  try {
-    throw 0;
-  } catch({f}) {
-    {
-      assertEquals(4, f());
-
-      function f() {
-        return 4;
-      }
-
-      assertEquals(4, f());
-    }
-  }
-
-  assertThrows(()=>f, ReferenceError);
 })();
 
 // Test that hoisting from blocks does happen in global scope