[BUGFIX] Ensures removeAllListeners doesn't break subsequent adds #17184
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This popped up as a bug in Ember Inspector because they use the REMOVE_ALL functionality during tests. REMOVE_ALL's are tricky, they don't neatly fall into the new model for listeners (which is why we are deprecating and removing them in 3.9) but for now, this should prevent that particular bug from occurring again.
Resolves #17183