vibrator: Drop libsoc_helper dependency

Referred from commit d6238db.

Issue: FP4-INT#34
Change-Id: I9ae15002defd83dfd82a2d3efe11b31e20dcf3dd
diff --git a/aidl/Android.bp b/aidl/Android.bp
index 6a11f0f..a346adf 100644
--- a/aidl/Android.bp
+++ b/aidl/Android.bp
@@ -55,7 +55,6 @@
         "liblog",
         "libqtivibratoreffect",
         "libqtivibratoreffectoffload",
-        "libsoc_helper",
         "libbinder_ndk",
         "android.hardware.vibrator-V1-ndk_platform",
     ],
diff --git a/aidl/VibratorOffload.cpp b/aidl/VibratorOffload.cpp
index 8c4e877..b9729b9 100644
--- a/aidl/VibratorOffload.cpp
+++ b/aidl/VibratorOffload.cpp
@@ -45,10 +45,6 @@
 #include "include/Vibrator.h"
 #include "VibratorPatterns.h"
 
-extern "C" {
-#include "libsoc_helper.h"
-}
-
 namespace aidl {
 namespace android {
 namespace hardware {