Consolidate the Google Analytics origin for Crashlytics. Only use "clx". (#5030)

Author: jasonhu-g

Crashlytics/Crashlytics/Helpers/FIRCLSFCRAnalytics.m

@@ -22,11 +22,6 @@
 // Origin for events and user properties generated by Crashlytics.
 static NSString *const kFIREventOriginCrash = @"clx";
 
-// Origin for events and user properties generated by Crash Reporting.
-// We're using this for now because it's whitelisted, and "clx" is not.
-// TODO(b/144163610) add a separate parameter for Crashlytics
-static NSString *const kFIREventListenerOriginCrash = @"crash";
-
 // App exception event name.
 static NSString *const kFIREventAppException = @"_ae";
 
@@ -36,13 +31,6 @@
 // Fatal key for the event payload.
 static NSString *const kFIRParameterFatal = @"fatal";
 
-// Realtime flag
-// TODO(b/144114243) We had to remove this because it's blacklisted.
-// Previously, the value was set as:
-//   static NSString *const kFIRParameterRealtime = @"_r";
-// and used in buildLogParamsFromCrash as:
-//   kFIRParameterRealtime : @(INT64_C(1)),
-
 FOUNDATION_STATIC_INLINE NSNumber *timeIntervalInMillis(NSTimeInterval timeInterval) {
   return @(llrint(timeInterval * 1000.0));
 }
@@ -66,7 +54,7 @@ + (void)registerEventListener:(id<FIRAnalyticsInteropListener>)eventListener
     return;
   }
 
-  [analytics registerAnalyticsListener:eventListener withOrigin:kFIREventListenerOriginCrash];
+  [analytics registerAnalyticsListener:eventListener withOrigin:kFIREventOriginCrash];
 
   FIRCLSDeveloperLog(@"Crashlytics:Crash:Reports:Event",
                      "Registered Firebase Analytics event listener");