Ensure sim color is shown on multi-sim devices when only one sim installed.

- Removed telecomManager check hasMultipleCallCapableAccounts() which would
only return 1 when a single sim is installed in a multisim phone.
- For single-sim devices, the Sim color is 0 (ie not selected) for the
Sim PhoneAccount, so the default behavior is to not show a sim color.

Bug: 18696518
Change-Id: I8bbb956e204422e122b3c50e6fc98c2916151aa4
diff --git a/src/com/android/dialer/calllog/PhoneAccountUtils.java b/src/com/android/dialer/calllog/PhoneAccountUtils.java
index adeec0f..f9bd9ad 100644
--- a/src/com/android/dialer/calllog/PhoneAccountUtils.java
+++ b/src/com/android/dialer/calllog/PhoneAccountUtils.java
@@ -75,21 +75,19 @@
      */
     public static int getAccountColor(Context context, PhoneAccountHandle accountHandle) {
         PhoneAccount account = getAccountOrNull(context, accountHandle);
+        // For single-sim devices the PhoneAccount will be NO_HIGHLIGHT_COLOR by default, so it is
+        // safe to always use the account highlight color.
         return account == null ? PhoneAccount.NO_HIGHLIGHT_COLOR : account.getHighlightColor();
     }
 
     /**
-     * Retrieve the account metadata, but if the account does not exist or the device has only a
-     * single registered and enabled account, return null.
+     * Retrieve the account metadata.
      */
     private static PhoneAccount getAccountOrNull(Context context,
             PhoneAccountHandle accountHandle) {
         TelecomManager telecomManager =
                 (TelecomManager) context.getSystemService(Context.TELECOM_SERVICE);
         final PhoneAccount account = telecomManager.getPhoneAccount(accountHandle);
-        if (account == null || !telecomManager.hasMultipleCallCapableAccounts()) {
-            return null;
-        }
         return account;
     }
 }