Revert "Add the FEATURE_TELEPHONY restriction to TelephonyManager.getAllCellInfo()"

This reverts commit 5d1429e0dd.

Doc string isn't resolving. Temporarily reverting.

Change-Id: I128b13abcf938c96b24225e373ac0885c24e083e

telephony/java/android/telephony/TelephonyManager.java

@@ -2834,7 +2834,7 @@ public class TelephonyManager {
     /**
      * Returns all observed cell information from all radios on the
      * device including the primary and neighboring cells. This does
-     * not cause or change the rate of PhoneStateListener#onCellInfoChanged.
+     * not cause or change the rate of PhoneStateListner#onCellInfoChanged.
      *<p>
      * The list can include one or more of {@link android.telephony.CellInfoGsm CellInfoGsm},
      * {@link android.telephony.CellInfoCdma CellInfoCdma},
@@ -2848,9 +2848,6 @@ public class TelephonyManager {
      * devices this may return null in which case getCellLocation should
      * be called.
      *<p>
-     * This API will return valid data for registered cells on devices with
-     * {@link android.content.pm.PackageManager.FEATURE_TELEPHONY}
-     *<p>
      * @return List of CellInfo or null if info unavailable.
      *
      * <p>Requires Permission: {@link android.Manifest.permission#ACCESS_COARSE_LOCATION}