Revert "Add patch from @spion to make nested-sync-noplan-noend pass"

This reverts commit 892c605.

Author: grncdr

lib/test.js

@@ -58,10 +58,6 @@ Test.prototype.run = function () {
         return;
     }
     this.emit('run');
-    var self = this;
-    if (!this._plan && this._progeny.length) nextTick(function () {
-        self.end();
-    });
 };
 
 Test.prototype.test = function (name, opts, cb) {