Remove RCTExportModule log spam

Summary:
The bridge complains if modules aren't exported, which isn't really helpful with lazily loaded modules and turbo modules.

I considered only turning this off when TurboModules is enabled, but figured we'd be killing this soon anyways... If anyone feels strongly I can go that approach.

Changelog: [iOS][Internal] Remove RCTExportModule log spam

Reviewed By: shergin

Differential Revision: D20629575

fbshipit-source-id: d32d9fe244c4d06acfee982fca7c7f63da294dc5

React/Base/RCTBridge+Private.h

@@ -11,11 +11,6 @@
 @protocol RCTJavaScriptExecutor;
 
 RCT_EXTERN NSArray<Class> *RCTGetModuleClasses(void);
-
-#if RCT_DEBUG
-RCT_EXTERN void RCTVerifyAllModulesExported(NSArray *extraModules);
-#endif
-
 RCT_EXTERN void RCTRegisterModule(Class);
 
 @interface RCTBridge ()

React/Base/RCTBridge.m

@@ -113,53 +113,6 @@ void RCTEnableTurboModule(BOOL enabled)
   turboModuleEnabled = enabled;
 }
 
-#if RCT_DEBUG
-void RCTVerifyAllModulesExported(NSArray *extraModules)
-{
-  // Check for unexported modules
-  unsigned int classCount;
-  Class *classes = objc_copyClassList(&classCount);
-
-  NSMutableSet *moduleClasses = [NSMutableSet new];
-  [moduleClasses addObjectsFromArray:RCTGetModuleClasses()];
-  [moduleClasses addObjectsFromArray:[extraModules valueForKeyPath:@"class"]];
-
-  for (unsigned int i = 0; i < classCount; i++) {
-    Class cls = classes[i];
-    if (strncmp(class_getName(cls), "RCTCxxModule", strlen("RCTCxxModule")) == 0) {
-      continue;
-    }
-    Class superclass = cls;
-    while (superclass) {
-      if (class_conformsToProtocol(superclass, @protocol(RCTBridgeModule))) {
-        if ([moduleClasses containsObject:cls]) {
-          break;
-        }
-
-        // Verify it's not a super-class of one of our moduleClasses
-        BOOL isModuleSuperClass = NO;
-        for (Class moduleClass in moduleClasses) {
-          if ([moduleClass isSubclassOfClass:cls]) {
-            isModuleSuperClass = YES;
-            break;
-          }
-        }
-        if (isModuleSuperClass) {
-          break;
-        }
-
-        // Note: Some modules may be lazily loaded and not exported up front, so this message is no longer a warning.
-        RCTLogInfo(@"Class %@ was not exported. Did you forget to use RCT_EXPORT_MODULE()?", cls);
-        break;
-      }
-      superclass = class_getSuperclass(superclass);
-    }
-  }
-
-  free(classes);
-}
-#endif
-
 @interface RCTBridge () <RCTReloadListener>
 @end
 

React/CxxBridge/RCTCxxBridge.mm

@@ -679,13 +679,6 @@ - (void)registerExtraModules
 
   RCT_PROFILE_END_EVENT(RCTProfileTagAlways, @"");
 
-#if RCT_DEBUG
-  static dispatch_once_t onceToken;
-  dispatch_once(&onceToken, ^{
-    RCTVerifyAllModulesExported(extraModules);
-  });
-#endif
-
   RCT_PROFILE_BEGIN_EVENT(
       RCTProfileTagAlways, @"-[RCTCxxBridge initModulesWithDispatchGroup:] preinitialized moduleData", nil);
   // Set up moduleData for pre-initialized module instances