Remove HIDL_GENERATED from things written by hand.

find . -name "*.h" -exec sed -i 's/HIDL_GENERATED_\(.*\)_H_/\U\1_H/g' {}
+

They now match what would be generated by -Lc++-impl. This prevents
confusion over whether or not the files are autogenerated.

Change-Id: I4aa89a39907024aa9525df71ff3715979f431357
Similar commit: https://android-review.googlesource.com/#/c/305996/
Test: pass
diff --git a/example/extension/light/2.0/default/Light.h b/example/extension/light/2.0/default/Light.h
index e09ec92..c555568 100644
--- a/example/extension/light/2.0/default/Light.h
+++ b/example/extension/light/2.0/default/Light.h
@@ -1,5 +1,5 @@
-#ifndef HIDL_GENERATED_android_hardware_example_extension_light_V2_0_Light_H_
-#define HIDL_GENERATED_android_hardware_example_extension_light_V2_0_Light_H_
+#ifndef ANDROID_HARDWARE_EXAMPLE_EXTENSION_LIGHT_V2_0_LIGHT_H
+#define ANDROID_HARDWARE_EXAMPLE_EXTENSION_LIGHT_V2_0_LIGHT_H
 
 #include <android/hardware/example/extension/light/2.0/IExtLight.h>
 #include <hidl/Status.h>
@@ -43,4 +43,4 @@
 }  // namespace hardware
 }  // namespace android
 
-#endif  // HIDL_GENERATED_android_hardware_example_extension_light_V2_0_Light_H_
+#endif  // ANDROID_HARDWARE_EXAMPLE_EXTENSION_LIGHT_V2_0_LIGHT_H