Remove android.security.KeyStore#getInstance()

This method no longer has any callers, so remove it.

(As with other methods in android.security.KeyStore, this did have
@UnsupportedAppUsage.  However, there is no reason for apps to use this.
Therefore, removing it is allowed by the non-SDK interface policy.)

Bug: 326508120
Test: Build
Change-Id: I76facc1d54bf656188d1d4c5745224fc49836132

1 files changed, 0 insertions, 9 deletions

diff --git a/keystore/java/android/security/KeyStore.java b/keystore/java/android/security/KeyStore.java
index 2f2215fd51a2..d1d7c145680f 100644
--- a/keystore/java/android/security/KeyStore.java
+++ b/keystore/java/android/security/KeyStore.java
@@ -16,8 +16,6 @@
 
 package android.security;
 
-import android.compat.annotation.UnsupportedAppUsage;
-
 /**
  * This class provides some constants and helper methods related to Android's Keystore service.
  * This class was originally much larger, but its functionality was superseded by other classes.
@@ -30,11 +28,4 @@ public class KeyStore {
 
     // Used for UID field to indicate the calling UID.
     public static final int UID_SELF = -1;
-
-    private static final KeyStore KEY_STORE = new KeyStore();
-
-    @UnsupportedAppUsage
-    public static KeyStore getInstance() {
-        return KEY_STORE;
-    }
 }