Set CallDetailsActivity exported to false.

Bug: 37846172
Test: on device
PiperOrigin-RevId: 161720359
Change-Id: I2df2036c6d9941d37511f450f58682cf07e774b0
diff --git a/java/com/android/dialer/calldetails/AndroidManifest.xml b/java/com/android/dialer/calldetails/AndroidManifest.xml
index fd887c4..9cf656e 100644
--- a/java/com/android/dialer/calldetails/AndroidManifest.xml
+++ b/java/com/android/dialer/calldetails/AndroidManifest.xml
@@ -19,13 +19,9 @@
   <application android:theme="@style/Theme.AppCompat">
     <activity
       android:label="@string/call_details"
+      android:exported="false"
       android:name="com.android.dialer.calldetails.CallDetailsActivity"
       android:theme="@style/DialerThemeBase.NoActionBar">
-      <intent-filter>
-        <action android:name="android.intent.action.VIEW"/>
-        <category android:name="android.intent.category.DEFAULT"/>
-        <data android:mimeType="vnd.android.cursor.item/calls"/>
-      </intent-filter>
     </activity>
   </application>
 </manifest>