external/sqlite/android cleanup.

Removes dead use of deprecated ucol_getShortDefinitionString.

Converts PhoneNumberUtils tests to gtest.

Bug: http://b/31459453
Change-Id: I4662e25d711868e21afb0661602c64852f0cef65
diff --git a/android/sqlite3_android.cpp b/android/sqlite3_android.cpp
index b836952..7356f9d 100644
--- a/android/sqlite3_android.cpp
+++ b/android/sqlite3_android.cpp
@@ -415,10 +415,7 @@
 
 extern "C" int register_localized_collators(sqlite3* handle, const char* systemLocale, int utf16Storage)
 {
-    int err;
     UErrorCode status = U_ZERO_ERROR;
-    void* icudata;
-
     UCollator* collator = ucol_open(systemLocale, &status);
     if (U_FAILURE(status)) {
         return -1;
@@ -429,10 +426,7 @@
         return -1;
     }
 
-    status = U_ZERO_ERROR;
-    char buf[1024];
-    ucol_getShortDefinitionString(collator, NULL, buf, 1024, &status);
-
+    int err;
     if (utf16Storage) {
         err = sqlite3_create_collation_v2(handle, LOCALIZED_COLLATOR_NAME, SQLITE_UTF16, collator,
                 collate16, (void(*)(void*))localized_collator_dtor);
@@ -459,7 +453,6 @@
         return err;
     }
 
-
     //// PHONEBOOK_COLLATOR
     status = U_ZERO_ERROR;
     collator = ucol_open(systemLocale, &status);
@@ -473,8 +466,6 @@
         return -1;
     }
 
-    status = U_ZERO_ERROR;
-    // ucol_getShortDefinitionString(collator, NULL, buf, 1024, &status);
     if (utf16Storage) {
         err = sqlite3_create_collation_v2(handle, PHONEBOOK_COLLATOR_NAME, SQLITE_UTF16, collator,
                 collate16, (void(*)(void*))localized_collator_dtor);
@@ -552,8 +543,9 @@
 #endif
 
     // Register the _PHONE_NUMBER_STRIPPED_REVERSED function, which imitates
-    // PhoneNumberUtils.getStrippedReversed.  This function is not public API,
-    // it is only used for compatibility with Android 1.6 and earlier.
+    // PhoneNumberUtils.getStrippedReversed.  This function is used by
+    // packages/providers/ContactsProvider/src/com/android/providers/contacts/LegacyApiSupport.java
+    // to provide compatibility with Android 1.6 and earlier.
     err = sqlite3_create_function(handle,
         "_PHONE_NUMBER_STRIPPED_REVERSED",
         1, SQLITE_UTF8, NULL,