Change Details

`PhabricatorEditorExtension` does not define a `newError()` method. Thus call existing `newTransactionError()` instead. Also fix the typo in the function name (this function does not seem to get called anywhere anyway.)

`newRequiredTransasctionError()` [sic!] and `newInvalidTransactionError()` are not called anywhere in the codebase. Both methods are `final protected`, thus remove them.

`PhabricatorEditorExtension` does not define a `newError()` method. Thus call existing `newTransactionError()` instead. Also fix the typo in the function name (this function does not seem to get called anywhere anyway.)newRequiredTransasctionError()` [sic!] and `newInvalidTransactionError()` are not called anywhere in the codebase. Both methods are `final protected`, thus remove them.