Revert of Injectable Obj-C video codecs

webrtc/sdk/objc/Framework/Classes/Common/helpers.h

Index: webrtc/sdk/objc/Framework/Classes/Common/helpers.h
diff --git a/webrtc/sdk/objc/Framework/Classes/Common/helpers.h b/webrtc/sdk/objc/Framework/Classes/Common/helpers.h
index fdcd9ccb569b68c583ab4ed8d9cc9feb06035da5..d9e1d7fa649d3dae95b72abd6407916cd39fda44 100644
--- a/webrtc/sdk/objc/Framework/Classes/Common/helpers.h
+++ b/webrtc/sdk/objc/Framework/Classes/Common/helpers.h
@@ -10,6 +10,8 @@
 
 #ifndef WEBRTC_SDK_OBJC_FRAMEWORK_CLASSES_COMMON_HELPERS_H_
 #define WEBRTC_SDK_OBJC_FRAMEWORK_CLASSES_COMMON_HELPERS_H_
+
+#if defined(WEBRTC_IOS)
 
 #include <string>
 
@@ -31,7 +33,6 @@
 // Example: <NSThread: 0x170066d80>{number = 1, name = main}
 std::string GetCurrentThreadDescription();
 
-#if defined(WEBRTC_IOS)
 // Returns the current name of the operating system.
 std::string GetSystemName();
 
@@ -45,7 +46,6 @@
 // Returns the device type.
 // Examples: ”iPhone” and ”iPod touch”.
 std::string GetDeviceType();
-#endif  // defined(WEBRTC_IOS)
 
 // Returns a more detailed device name.
 // Examples: "iPhone 5s (GSM)" and "iPhone 6 Plus".
@@ -65,12 +65,12 @@
 // Returns the number of processing cores available on the device.
 int GetProcessorCount();
 
-#if defined(WEBRTC_IOS)
 // Indicates whether Low Power Mode is enabled on the iOS device.
 bool GetLowPowerModeEnabled();
-#endif
 
 }  // namespace ios
 }  // namespace webrtc
 
+#endif  // defined(WEBRTC_IOS)
+
 #endif  // WEBRTC_SDK_OBJC_FRAMEWORK_CLASSES_COMMON_HELPERS_H_