Revert "Cts test fix for shortcode 48000"

This reverts commit 3f3336aa5993b6d1ad2f8d578010785409ab3e15.

Change-Id: I39ec42364f535b118fc94dec63e51a6a6aed57b0
(cherry picked from commit 947956c7a6ec33937e8597a08f9486eb26332631)
diff --git a/tests/tests/telephony/src/android/telephony/cts/SmsUsageMonitorShortCodeTest.java b/tests/tests/telephony/src/android/telephony/cts/SmsUsageMonitorShortCodeTest.java
index 0d24d06..a1062f7 100644
--- a/tests/tests/telephony/src/android/telephony/cts/SmsUsageMonitorShortCodeTest.java
+++ b/tests/tests/telephony/src/android/telephony/cts/SmsUsageMonitorShortCodeTest.java
@@ -299,7 +299,7 @@
             new ShortCodeTest("it", "112", CATEGORY_NOT_SHORT_CODE),
             new ShortCodeTest("it", "116117", CATEGORY_FREE_SHORT_CODE),
             new ShortCodeTest("it", "4567", CATEGORY_NOT_SHORT_CODE),
-            new ShortCodeTest("it", "48000", CATEGORY_FREE_SHORT_CODE),
+            new ShortCodeTest("it", "48000", CATEGORY_PREMIUM_SHORT_CODE),
             new ShortCodeTest("it", "45678", CATEGORY_PREMIUM_SHORT_CODE),
             new ShortCodeTest("it", "56789", CATEGORY_POSSIBLE_PREMIUM_SHORT_CODE),
             new ShortCodeTest("it", "456789", CATEGORY_NOT_SHORT_CODE),