Erlotinib Active Not Recruiting Phase 2 Trials for Stage 0is Ureter Cancer AJCC v8 / Stage 0a Bladder Cancer AJCC v8 / Stage III Renal Pelvis Cancer AJCC v8 / Stage II Urethral Cancer AJCC v8 / Stage III Urethral Cancer AJCC v8 / Stage 0is Bladder Cancer AJCC v8 / Recurrent Ureter Urothelial Carcinoma / Stage 0a Renal Pelvis Cancer AJCC v8 / Stage III Ureter Cancer AJCC v8 / Stage II Renal Pelvis Cancer AJCC v8 / Stage IIIA Bladder Cancer AJCC v8 / Recurrent Bladder Urothelial Carcinoma / Recurrent Renal Pelvis Urothelial Carcinoma / Stage 0is Renal Pelvis Cancer AJCC v8 / Stage 0a Urethral Cancer AJCC v8 / Stage II Bladder Cancer AJCC v8 / Recurrent Urethral Urothelial Carcinoma / Stage II Ureter Cancer AJCC v8 / Stage 0a Ureter Cancer AJCC v8 / Stage 0is Urethral Cancer AJCC v8 / Transitional Cell Carcinoma Treatment