Remove "platform_slice" attribute from Settings.

Bug: 126222433
Test: robo
Change-Id: I05beec7d3e3ec713c40740a1adbcacaee88237b5

src/com/android/settings/slices/SliceData.java

@@ -71,8 +71,6 @@ public class SliceData {
     @SliceType
     private final int mSliceType;
 
-    private final boolean mIsPlatformDefined;
-
     private final String mUnavailableSliceSubtitle;
 
     public String getKey() {
@@ -115,10 +113,6 @@ public class SliceData {
         return mSliceType;
     }
 
-    public boolean isPlatformDefined() {
-        return mIsPlatformDefined;
-    }
-
     public String getUnavailableSliceSubtitle() {
         return mUnavailableSliceSubtitle;
     }
@@ -134,7 +128,6 @@ public class SliceData {
         mUri = builder.mUri;
         mPreferenceController = builder.mPrefControllerClassName;
         mSliceType = builder.mSliceType;
-        mIsPlatformDefined = builder.mIsPlatformDefined;
         mUnavailableSliceSubtitle = builder.mUnavailableSliceSubtitle;
     }
 
@@ -173,8 +166,6 @@ public class SliceData {
 
         private int mSliceType;
 
-        private boolean mIsPlatformDefined;
-
         private String mUnavailableSliceSubtitle;
 
         public Builder setKey(String key) {
@@ -227,11 +218,6 @@ public class SliceData {
             return this;
         }
 
-        public Builder setPlatformDefined(boolean isPlatformDefined) {
-            mIsPlatformDefined = isPlatformDefined;
-            return this;
-        }
-
         public Builder setUnavailableSliceSubtitle(
                 String unavailableSliceSubtitle) {
             mUnavailableSliceSubtitle = unavailableSliceSubtitle;