Revert the default phone number comparation algorithm.

Now developers have to explicitly set the third argument of PHONE_NUMBERS_COMPARE() into 1,
when they want to use "strict" phone number comparation algorithm, which was used in Donut.
In default, PHONE_NUMBER_COMPARE() now uses "loose" phone number comparation algorithm,
which had been used in Cupcake.

Internal issue id: 1892808
diff --git a/android/PhoneNumberUtilsTest.cpp b/android/PhoneNumberUtilsTest.cpp
index 4d9809d..700dca3 100644
--- a/android/PhoneNumberUtilsTest.cpp
+++ b/android/PhoneNumberUtilsTest.cpp
@@ -47,12 +47,12 @@
     })
 
 #define EXPECT_EQ(input1, input2)                                       \
-    EXPECT(phone_number_compare, (input1), (input2), true,              \
+    EXPECT(phone_number_compare_strict, (input1), (input2), true,              \
            (total), (error))
 
 
 #define EXPECT_NE(input1, input2)                                       \
-    EXPECT(phone_number_compare, (input1), (input2), false,             \
+    EXPECT(phone_number_compare_strict, (input1), (input2), false,             \
            (total), (error))
 
 int main() {