Revert "Password blacklist"

Bug: 73750934
Test: compiles
Change-Id: I0dd16073a9fe590d5fb04731b9ecc65f216f96eb

Author: Rubin Xu

app/src/main/AndroidManifest.xml

@@ -26,7 +26,6 @@
     <uses-permission android:name="android.permission.INTERNET" />
     <uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
     <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
-    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
 
     <application
             android:allowBackup="true"

app/src/main/java/com/afwsamples/testdpc/common/Util.java

@@ -165,17 +165,12 @@ public static List<UserHandle> getBindDeviceAdminTargetUsers(Context context) {
 
     public static void showFileViewerForImportingCertificate(PreferenceFragment fragment,
             int requestCode) {
-        showFilePicker(fragment, "*/*", requestCode);
-    }
-
-    public static void showFilePicker(PreferenceFragment fragment, String type, int requestCode) {
-        Intent intent = new Intent(Intent.ACTION_GET_CONTENT);
-        intent.addCategory(Intent.CATEGORY_OPENABLE);
-        intent.setTypeAndNormalize(type);
+        Intent certIntent = new Intent(Intent.ACTION_GET_CONTENT);
+        certIntent.setTypeAndNormalize("*/*");
         try {
-            fragment.startActivityForResult(intent, requestCode);
+            fragment.startActivityForResult(certIntent, requestCode);
         } catch (ActivityNotFoundException e) {
-            Log.e(TAG, "showFilePicker: ", e);
+            Log.e(TAG, "showFileViewerForImportingCertificate: ", e);
         }
     }