Remove seconds from screen lock timeout summary.

Closes #11241

app/src/main/java/org/thoughtcrime/securesms/components/settings/app/privacy/PrivacySettingsFragment.kt

@@ -359,13 +359,12 @@ class PrivacySettingsFragment : DSLSettingsFragment(R.string.preferences__privac
 
   private fun getScreenLockInactivityTimeoutSummary(timeoutSeconds: Long): String {
     val hours = TimeUnit.SECONDS.toHours(timeoutSeconds)
-    val minutes =
-      TimeUnit.SECONDS.toMinutes(timeoutSeconds) - TimeUnit.SECONDS.toHours(timeoutSeconds) * 60
+    val minutes = TimeUnit.SECONDS.toMinutes(timeoutSeconds) - hours * 60
 
     return if (timeoutSeconds <= 0) {
       getString(R.string.AppProtectionPreferenceFragment_none)
     } else {
-      String.format(Locale.getDefault(), "%02d:%02d:00", hours, minutes)
+      String.format(Locale.getDefault(), "%02d:%02d", hours, minutes)
     }
   }