Remove unused serializeToString

Classes/BITTelemetryObject.h

@@ -4,6 +4,5 @@
 @interface BITTelemetryObject : NSObject <NSCoding>
 
 - (NSDictionary *)serializeToDictionary;
-- (NSString *)serializeToString;
 
 @end

Classes/BITTelemetryObject.m

@@ -7,17 +7,6 @@
   return [NSDictionary dictionary];
 }
 
-- (NSString *)serializeToString {
-  NSDictionary *dict = [self serializeToDictionary];
-  NSMutableString  *jsonString;
-  NSError *error = nil;
-  NSData *json;
-  json = [NSJSONSerialization dataWithJSONObject:dict options:0 error:&error];
-  jsonString = [[NSMutableString alloc] initWithData:json encoding:NSUTF8StringEncoding];
-  NSString *returnString = [[jsonString stringByReplacingOccurrencesOfString:@"\"true\"" withString:@"true"] stringByReplacingOccurrencesOfString:@"\"false\"" withString:@"false"];
-  return returnString;
-}
-
 - (void)encodeWithCoder:(NSCoder *)coder {
 }
 

Support/HockeySDKTests/BITSenderTests.m

@@ -48,7 +48,9 @@
 
 - (void)testRequestContainsDataItem {
   BITEnvelope *testItem = [BITEnvelope new];
-  NSData *expectedBodyData = [[testItem serializeToString] dataUsingEncoding:NSUTF8StringEncoding];
+  NSData *expectedBodyData = [NSJSONSerialization dataWithJSONObject:[testItem serializeToDictionary]
+                                                              options:0
+                                                                error:nil];
   NSURLRequest *testRequest = [_sut requestForData:expectedBodyData];
   
   XCTAssertNotNil(testRequest);