Internal code clean up (#584)

Fixes indentation and removes unused imports.

Author: protocol86

Example/Auth/Tests/FIRVerifyPasswordRequestTest.m

@@ -18,9 +18,9 @@
 
 #import "FIRAuthErrors.h"
 #import "FIRAuthBackend.h"
+#import "FIRFakeBackendRPCIssuer.h"
 #import "FIRVerifyPasswordRequest.h"
 #import "FIRVerifyPasswordResponse.h"
-#import "FIRFakeBackendRPCIssuer.h"
 
 /** @var kTestAPIKey
     @brief Fake API key used for testing.
@@ -125,9 +125,10 @@ - (void)tearDown {
     @brief Tests the verify password request.
  */
 - (void)testVerifyPasswordRequest {
-  FIRVerifyPasswordRequest * request = [[FIRVerifyPasswordRequest alloc] initWithEmail:kTestEmail
-                                                                              password:kTestPassword
-                                                                                requestConfiguration:_requestConfiguration];
+  FIRVerifyPasswordRequest * request =
+      [[FIRVerifyPasswordRequest alloc] initWithEmail:kTestEmail
+                                             password:kTestPassword
+                                 requestConfiguration:_requestConfiguration];
   request.returnSecureToken = NO;
   [FIRAuthBackend verifyPassword:request
                         callback:^(FIRVerifyPasswordResponse *_Nullable response,
@@ -147,9 +148,10 @@ - (void)testVerifyPasswordRequest {
     @brief Tests the verify password request with optional fields.
  */
 - (void)testVerifyPasswordRequestOptionalFields {
-  FIRVerifyPasswordRequest * request = [[FIRVerifyPasswordRequest alloc] initWithEmail:kTestEmail
-                                                                              password:kTestPassword
-                                                                                requestConfiguration:_requestConfiguration];
+  FIRVerifyPasswordRequest * request =
+      [[FIRVerifyPasswordRequest alloc] initWithEmail:kTestEmail
+                                             password:kTestPassword
+                                 requestConfiguration:_requestConfiguration];
   request.pendingIDToken = kTestPendingToken;
   request.captchaChallenge = kTestCaptchaChallenge;
   request.captchaResponse = kTestCaptchaResponse;

Firebase/Auth/Source/RPCs/FIRCreateAuthURIResponse.m

@@ -16,8 +16,6 @@
 
 #import "FIRCreateAuthURIResponse.h"
 
-#import "FIRAuthErrorUtils.h"
-
 @implementation FIRCreateAuthURIResponse
 
 - (BOOL)setWithDictionary:(NSDictionary *)dictionary

Firebase/Auth/Source/RPCs/FIRDeleteAccountResponse.m

@@ -16,8 +16,6 @@
 
 #import "FIRDeleteAccountResponse.h"
 
-#import "FIRAuthErrorUtils.h"
-
 @implementation FIRDeleteAccountResponse
 
 - (BOOL)setWithDictionary:(NSDictionary *)dictionary

Firebase/Auth/Source/RPCs/FIRGetOOBConfirmationCodeResponse.m

@@ -16,8 +16,6 @@
 
 #import "FIRGetOOBConfirmationCodeResponse.h"
 
-#import "FIRAuthErrorUtils.h"
-
 NS_ASSUME_NONNULL_BEGIN
 
 /** @var kOOBCodeKey

Firebase/Auth/Source/RPCs/FIRResetPasswordResponse.m

@@ -16,8 +16,6 @@
 
 #import "FIRResetPasswordResponse.h"
 
-#import "FIRAuthErrorUtils.h"
-
 @implementation FIRResetPasswordResponse
 
 - (BOOL)setWithDictionary:(NSDictionary *)dictionary

Firebase/Auth/Source/RPCs/FIRSetAccountInfoResponse.m

@@ -16,8 +16,6 @@
 
 #import "FIRSetAccountInfoResponse.h"
 
-#import "FIRAuthErrorUtils.h"
-
 @implementation FIRSetAccountInfoResponseProviderUserInfo
 
 - (instancetype)initWithDictionary:(NSDictionary *)dictionary {

Firebase/Auth/Source/RPCs/FIRSignUpNewUserResponse.m

@@ -16,8 +16,6 @@
 
 #import "FIRSignUpNewUserResponse.h"
 
-#import "FIRAuthErrorUtils.h"
-
 @implementation FIRSignUpNewUserResponse
 
 - (BOOL)setWithDictionary:(NSDictionary *)dictionary

Firebase/Auth/Source/RPCs/FIRVerifyAssertionResponse.m

@@ -16,8 +16,6 @@
 
 #import "FIRVerifyAssertionResponse.h"
 
-#import "FIRAuthErrorUtils.h"
-
 @implementation FIRVerifyAssertionResponse
 
 - (BOOL)setWithDictionary:(NSDictionary *)dictionary

Firebase/Auth/Source/RPCs/FIRVerifyCustomTokenResponse.m

@@ -16,8 +16,6 @@
 
 #import "FIRVerifyCustomTokenResponse.h"
 
-#import "FIRAuthErrorUtils.h"
-
 @implementation FIRVerifyCustomTokenResponse
 
 - (BOOL)setWithDictionary:(NSDictionary *)dictionary

Firebase/Auth/Source/RPCs/FIRVerifyPasswordResponse.m

@@ -16,8 +16,6 @@
 
 #import "FIRVerifyPasswordResponse.h"
 
-#import "FIRAuthErrorUtils.h"
-
 @implementation FIRVerifyPasswordResponse
 
 - (BOOL)setWithDictionary:(NSDictionary *)dictionary