Remove unused hidden API import

Besides, it's not allowed to use such APIs by vendor components
starting from Android P.

Bug: 120257433
Test: $ lunch aosp_cf_x86_phone-userdebug # or
      $ lunch aosp_cf_x86_64_phone-userdebug # or
      $ lunch cf_x86_64_phone-userdebug # internal master
      $ m VSoCService

Change-Id: I4d2c430ea7803496287545e9d4fe364da8c07f85
diff --git a/guest/monitoring/vsoc_service/Android.mk b/guest/monitoring/vsoc_service/Android.mk
index 635018b..ad8ce40 100644
--- a/guest/monitoring/vsoc_service/Android.mk
+++ b/guest/monitoring/vsoc_service/Android.mk
@@ -20,7 +20,7 @@
 LOCAL_SRC_FILES := $(call all-java-files-under, java)
 LOCAL_STATIC_JAVA_LIBRARIES := guava
 LOCAL_PACKAGE_NAME := VSoCService
-LOCAL_PRIVATE_PLATFORM_APIS := true
+LOCAL_SDK_VERSION := 26
 LOCAL_PROGUARD_FLAGS := -include build/core/proguard.flags
 LOCAL_PROGUARD_FLAG_FILES := proguard.flags
 LOCAL_VENDOR_MODULE := true
diff --git a/guest/monitoring/vsoc_service/java/com/android/google/gce/gceservice/GceService.java b/guest/monitoring/vsoc_service/java/com/android/google/gce/gceservice/GceService.java
index 6e8b842..b070377 100644
--- a/guest/monitoring/vsoc_service/java/com/android/google/gce/gceservice/GceService.java
+++ b/guest/monitoring/vsoc_service/java/com/android/google/gce/gceservice/GceService.java
@@ -23,7 +23,6 @@
 import android.util.Log;
 import android.os.Binder;
 import android.os.IBinder;
-import android.os.ServiceManager;
 import java.io.FileDescriptor;
 import java.io.PrintWriter;
 import java.util.List;