remove email address validation

app.py

@@ -190,11 +190,7 @@ def validate_request(request: GenerationRequest, oauth_token: Optional[Union[gr.
         raise Exception("Top K must be between 1 and 100")
     if request.top_p < 0.0 or request.top_p > 1.0:
         raise Exception("Top P must be between 0.0 and 1.0")   
-    
-    # check valid email address TODO: could use py3-validate-email https://stackoverflow.com/questions/8022530/how-to-check-for-valid-email-address
-    if "@" not in request.email or "." not in request.email.split("@")[-1]:
-        raise Exception("Invalid email address")
-    
+        
     return request