remove BLINK_EXPORT for motion/orientation

Source/web/WebRuntimeFeatures.cpp

Index: Source/web/WebRuntimeFeatures.cpp
diff --git a/Source/web/WebRuntimeFeatures.cpp b/Source/web/WebRuntimeFeatures.cpp
index da0480bcc7e770b079311b8450f43e76d9a87081..89c29f3def4611775a0e0bd79a1bcafeb9cc2c44 100644
--- a/Source/web/WebRuntimeFeatures.cpp
+++ b/Source/web/WebRuntimeFeatures.cpp
@@ -72,16 +72,6 @@ void WebRuntimeFeatures::enableDatabase(bool enable)
     RuntimeEnabledFeatures::setDatabaseEnabled(enable);
 }
 
-void WebRuntimeFeatures::enableDeviceMotion(bool enable)
-{
-    RuntimeEnabledFeatures::setDeviceMotionEnabled(enable);
-}
-
-void WebRuntimeFeatures::enableDeviceOrientation(bool enable)
-{
-    RuntimeEnabledFeatures::setDeviceOrientationEnabled(enable);
-}
-
 void WebRuntimeFeatures::enableDialogElement(bool enable)
 {
     RuntimeEnabledFeatures::setDialogElementEnabled(enable);