chore(example): remove firebase from example mlkit apps

Author: davidgovea

examples/mlkit/android/app/build.gradle

@@ -166,4 +166,4 @@ task downloadDependencies() {
   }
 }
 
-apply plugin: 'com.google.gms.google-services'
+// apply plugin: 'com.google.gms.google-services'

examples/mlkit/ios/Podfile

@@ -31,6 +31,4 @@ target 'mlkit' do
     'LabelDetectorMLKit',
   ]
 
-  pod 'Firebase/Core'
-
 end

examples/mlkit/ios/mlkit.xcodeproj/project.pbxproj

@@ -23,7 +23,6 @@
 		13B07FC11A68108700A75B9A /* main.m in Sources */ = {isa = PBXBuildFile; fileRef = 13B07FB71A68108700A75B9A /* main.m */; };
 		140ED2AC1D01E1AD002B40FF /* libReact.a in Frameworks */ = {isa = PBXBuildFile; fileRef = 146834041AC3E56700842450 /* libReact.a */; };
 		146834051AC3E58100842450 /* libReact.a in Frameworks */ = {isa = PBXBuildFile; fileRef = 146834041AC3E56700842450 /* libReact.a */; };
-		2622130A222217F8009EBD58 /* GoogleService-Info.plist in Resources */ = {isa = PBXBuildFile; fileRef = 262212E4222217F8009EBD58 /* GoogleService-Info.plist */; };
 		2D02E4BC1E0B4A80006451C7 /* AppDelegate.m in Sources */ = {isa = PBXBuildFile; fileRef = 13B07FB01A68108700A75B9A /* AppDelegate.m */; };
 		2D02E4BD1E0B4A84006451C7 /* Images.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 13B07FB51A68108700A75B9A /* Images.xcassets */; };
 		2D02E4BF1E0B4AB3006451C7 /* main.m in Sources */ = {isa = PBXBuildFile; fileRef = 13B07FB71A68108700A75B9A /* main.m */; };
@@ -1078,7 +1077,6 @@
 			files = (
 				13B07FBF1A68108700A75B9A /* Images.xcassets in Resources */,
 				13B07FBD1A68108700A75B9A /* LaunchScreen.xib in Resources */,
-				2622130A222217F8009EBD58 /* GoogleService-Info.plist in Resources */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};

examples/mlkit/ios/mlkit/AppDelegate.m

@@ -7,7 +7,6 @@
 
 #import "AppDelegate.h"
 
-#import <Firebase.h>
 #import <React/RCTBundleURLProvider.h>
 #import <React/RCTRootView.h>
 
@@ -17,8 +16,6 @@ - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(
 {
   NSURL *jsCodeLocation;
 
-  [FIRApp configure];
-
   jsCodeLocation = [[RCTBundleURLProvider sharedSettings] jsBundleURLForBundleRoot:@"index" fallbackResource:nil];
 
   RCTRootView *rootView = [[RCTRootView alloc] initWithBundleURL:jsCodeLocation