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/health/1.0/default/Health.h b/health/1.0/default/Health.h
index c05751f..92de26f 100644
--- a/health/1.0/default/Health.h
+++ b/health/1.0/default/Health.h
@@ -1,5 +1,5 @@
-#ifndef HIDL_GENERATED_android_hardware_health_V1_0_Health_H_
-#define HIDL_GENERATED_android_hardware_health_V1_0_Health_H_
+#ifndef ANDROID_HARDWARE_HEALTH_V1_0_HEALTH_H
+#define ANDROID_HARDWARE_HEALTH_V1_0_HEALTH_H
 
 #include <android/hardware/health/1.0/IHealth.h>
 #include <hidl/Status.h>
@@ -39,4 +39,4 @@
 }  // namespace hardware
 }  // namespace android
 
-#endif  // HIDL_GENERATED_android_hardware_health_V1_0_Health_H_
+#endif  // ANDROID_HARDWARE_HEALTH_V1_0_HEALTH_H