Revert of iOS - Add iceRegatherIntervalRange.

webrtc/sdk/objc/Framework/UnitTests/RTCIntervalRangeTests.mm

-/*
- *  Copyright 2017 The WebRTC project authors. All Rights Reserved.
- *
- *  Use of this source code is governed by a BSD-style license
- *  that can be found in the LICENSE file in the root of the source
- *  tree. An additional intellectual property rights grant can be found
- *  in the file PATENTS.  All contributing project authors may
- *  be found in the AUTHORS file in the root of the source tree.
- */
-
-#import <Foundation/Foundation.h>
-
-#include "webrtc/rtc_base/gunit.h"
-
-#import "RTCIntervalRange+Private.h"
-#import "WebRTC/RTCIntervalRange.h"
-
-@interface RTCIntervalRangeTest : NSObject
-- (void)testConversionToNativeConfiguration;
-- (void)testNativeConversionToConfiguration;
-@end
-
-@implementation RTCIntervalRangeTest
-
-- (void)testConversionToNativeConfiguration {
-  NSInteger min = 0;
-  NSInteger max = 100;
-  RTCIntervalRange *range = [[RTCIntervalRange alloc] initWithMin:min max:max];
-  EXPECT_EQ(min, range.min);
-  EXPECT_EQ(max, range.max);
-  std::unique_ptr<rtc::IntervalRange> nativeRange = range.nativeIntervalRange;
-  EXPECT_EQ(min, nativeRange->min());
-  EXPECT_EQ(max, nativeRange->max());
-}
-
-- (void)testNativeConversionToConfiguration {
-  NSInteger min = 0;
-  NSInteger max = 100;
-  rtc::IntervalRange nativeRange((int)min, (int)max);
-  RTCIntervalRange *range =
-      [[RTCIntervalRange alloc] initWithNativeIntervalRange:nativeRange];
-  EXPECT_EQ(min, range.min);
-  EXPECT_EQ(max, range.max);
-}
-
-@end
-
-TEST(RTCIntervalRangeTest, NativeConfigurationConversionTest) {
-  @autoreleasepool {
-    RTCIntervalRangeTest *test = [[RTCIntervalRangeTest alloc] init];
-    [test testConversionToNativeConfiguration];
-    [test testNativeConversionToConfiguration];
-  }
-}