Revert^2 "Enable String compression."

Test: m test-art-host (interpreter, JIT, AOT)
Test: m test-art-target on Nexus 6P (interpreter, JIT, AOT)
Test: Nexus 6P boots
Test: m ahat-test
Bug: 31040547

This reverts commit afcb365b2d3ae152989826c2afb0d98a9cf3f6be.

Change-Id: Id7e27d717c8e36d3c7abdde59ca2c8fd4fc221c9
diff --git a/runtime/asm_support.h b/runtime/asm_support.h
index c7a94a9..4a2e34f 100644
--- a/runtime/asm_support.h
+++ b/runtime/asm_support.h
@@ -246,7 +246,7 @@
 ADD_TEST_EQ(MIRROR_STRING_VALUE_OFFSET, art::mirror::String::ValueOffset().Int32Value())
 
 // String compression feature.
-#define STRING_COMPRESSION_FEATURE 0
+#define STRING_COMPRESSION_FEATURE 1
 ADD_TEST_EQ(STRING_COMPRESSION_FEATURE, art::mirror::kUseStringCompression);
 
 #if defined(__cplusplus)