Uninstall the global error at the end of env execution

jasmine-npm needs this so that it can do its own error handling during
globalTeardown.

lib/jasmine-core/jasmine.js

@@ -1676,7 +1676,9 @@ getJasmineRequireObj().Env = function(j$) {
         validateConfigForParallel();
       }
 
-      return runner.execute(runablesToRun);
+      const result = await runner.execute(runablesToRun);
+      this.cleanup_();
+      return result;
     };
 
     /**

src/core/Env.js

@@ -541,7 +541,9 @@ getJasmineRequireObj().Env = function(j$) {
         validateConfigForParallel();
       }
 
-      return runner.execute(runablesToRun);
+      const result = await runner.execute(runablesToRun);
+      this.cleanup_();
+      return result;
     };
 
     /**