Suppress logging to avoid showing phone no.

Bug: 19193581
Change-Id: I6ee17a2eab9d0ed84c931d6395a5aeb148177f95
diff --git a/telephony/java/android/telephony/SubscriptionInfo.java b/telephony/java/android/telephony/SubscriptionInfo.java
index adbe1d8..ca3c636 100644
--- a/telephony/java/android/telephony/SubscriptionInfo.java
+++ b/telephony/java/android/telephony/SubscriptionInfo.java
@@ -335,7 +335,7 @@
     public String toString() {
         return "{id=" + mId + ", iccId=" + mIccId + " simSlotIndex=" + mSimSlotIndex
                 + " displayName=" + mDisplayName + " carrierName=" + mCarrierName
-                + " nameSource=" + mNameSource + " iconTint=" + mIconTint + " number=" + mNumber
+                + " nameSource=" + mNameSource + " iconTint=" + mIconTint
                 + " dataRoaming=" + mDataRoaming + " iconBitmap=" + mIconBitmap + " mcc " + mMcc
                 + " mnc " + mMnc + "}";
     }