Remove redundant iOS 7 polyfill

Author: neilco

ios/IOS7Polyfill.h

@@ -48,7 +48,6 @@
 		A19B48241D98102400E6868A /* ReactNativeBlobUtilProgress.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = ReactNativeBlobUtilProgress.m; sourceTree = "<group>"; };
 		A1AAE2971D300E3E0051D11C /* ReactNativeBlobUtilReqBuilder.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = ReactNativeBlobUtilReqBuilder.h; sourceTree = "<group>"; };
 		A1AAE2981D300E4D0051D11C /* ReactNativeBlobUtilReqBuilder.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = ReactNativeBlobUtilReqBuilder.m; sourceTree = "<group>"; };
-		A1F950181D7E9134002A95A6 /* IOS7Polyfill.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = IOS7Polyfill.h; sourceTree = "<group>"; };
 /* End PBXFileReference section */
 
 /* Begin PBXFrameworksBuildPhase section */
@@ -76,7 +75,6 @@
 				9FD8D3C126F1709A00009F35 /* ReactNativeBlobUtilFileTransformer.h */,
 				A19B48241D98102400E6868A /* ReactNativeBlobUtilProgress.m */,
 				A19B48231D98100800E6868A /* ReactNativeBlobUtilProgress.h */,
-				A1F950181D7E9134002A95A6 /* IOS7Polyfill.h */,
 				A1AAE2981D300E4D0051D11C /* ReactNativeBlobUtilReqBuilder.m */,
 				A1AAE2971D300E3E0051D11C /* ReactNativeBlobUtilReqBuilder.h */,
 				A158F42E1D0539CE006FFD38 /* ReactNativeBlobUtilNetwork.h */,

ios/ReactNativeBlobUtil.xcodeproj/project.pbxproj

@@ -11,7 +11,6 @@
 #import "ReactNativeBlobUtilFS.h"
 #import "ReactNativeBlobUtilConst.h"
 #import "ReactNativeBlobUtilFileTransformer.h"
-#import "IOS7Polyfill.h"
 @import AssetsLibrary;
 
 #import <CommonCrypto/CommonDigest.h>
@@ -381,7 +380,7 @@ + (void) writeFile:(NSString *)path
 
         NSFileHandle *fileHandle = [NSFileHandle fileHandleForWritingAtPath:path];
         NSData * content = nil;
-        if([encoding RNFBContainsString:@"base64"]) {
+        if([encoding containsString:@"base64"]) {
             content = [[NSData alloc] initWithBase64EncodedString:data options:0];
         }
         else if([encoding isEqualToString:@"uri"]) {

ios/ReactNativeBlobUtilFS.m

@@ -11,7 +11,6 @@
 #import "ReactNativeBlobUtilNetwork.h"
 #import "ReactNativeBlobUtilConst.h"
 #import "ReactNativeBlobUtilFS.h"
-#import "IOS7Polyfill.h"
 
 #if __has_include(<React/RCTAssert.h>)
 #import <React/RCTLog.h>
@@ -151,7 +150,7 @@ +(void) buildOctetRequest:(NSDictionary *)options
 
                     __block NSString * cType = [[self class]getHeaderIgnoreCases:@"content-type" fromHeaders:mheaders];
                     // when content-type is application/octet* decode body string using BASE64 decoder
-                    if([[cType lowercaseString] hasPrefix:@"application/octet"] || [[cType lowercaseString] RNFBContainsString:@";base64"])
+                    if([[cType lowercaseString] hasPrefix:@"application/octet"] || [[cType lowercaseString] containsString:@";base64"])
                     {
                         __block NSString * ncType = [[cType stringByReplacingOccurrencesOfString:@";base64" withString:@""]stringByReplacingOccurrencesOfString:@";BASE64" withString:@""];
                         if([mheaders valueForKey:@"content-type"] != nil)

ios/ReactNativeBlobUtilReqBuilder.m

@@ -13,7 +13,6 @@
 #import "ReactNativeBlobUtilFileTransformer.h"
 #import "ReactNativeBlobUtilReqBuilder.h"
 
-#import "IOS7Polyfill.h"
 #import <CommonCrypto/CommonDigest.h>
 
 
@@ -222,20 +221,20 @@ - (void) URLSession:(NSURLSession *)session dataTask:(NSURLSessionDataTask *)dat
 
             return;
         } else {
-            self.isServerPush = [[respCType lowercaseString] RNFBContainsString:@"multipart/x-mixed-replace;"];
+            self.isServerPush = [[respCType lowercaseString] containsString:@"multipart/x-mixed-replace;"];
         }
 
         if(respCType)
         {
             NSArray * extraBlobCTypes = [options objectForKey:CONFIG_EXTRA_BLOB_CTYPE];
 
-            if ([respCType RNFBContainsString:@"text/"]) {
+            if ([respCType containsString:@"text/"]) {
                 respType = @"text";
-            } else if ([respCType RNFBContainsString:@"application/json"]) {
+            } else if ([respCType containsString:@"application/json"]) {
                 respType = @"json";
             } else if(extraBlobCTypes) { // If extra blob content type is not empty, check if response type matches
                 for (NSString * substr in extraBlobCTypes) {
-                    if ([respCType RNFBContainsString:[substr lowercaseString]]) {
+                    if ([respCType containsString:[substr lowercaseString]]) {
                         respType = @"blob";
                         respFile = YES;
                         destPath = [ReactNativeBlobUtilFS getTempPath:taskId withExtension:nil];
@@ -293,7 +292,7 @@ - (void) URLSession:(NSURLSession *)session dataTask:(NSURLSessionDataTask *)dat
 
             // if not set overwrite in options, defaults to TRUE
             BOOL overwrite = [options valueForKey:@"overwrite"] == nil ? YES : [[options valueForKey:@"overwrite"] boolValue];
-            BOOL appendToExistingFile = [destPath RNFBContainsString:@"?append=true"];
+            BOOL appendToExistingFile = [destPath containsString:@"?append=true"];
 
             appendToExistingFile = !overwrite;