Revert "ART: Disable sanitization for sigchainlib"

This reverts commit 89b85843049043bfa82942e48f32ec80da73090d.

Reason for revert: All users have moved to Soong

Bug: 38456126
Change-Id: Ia2fb76ecf6cbb65231623602c722d1ad7b671ab1
Test: m
diff --git a/sigchainlib/Android.bp b/sigchainlib/Android.bp
index 0c64b7d..08af254 100644
--- a/sigchainlib/Android.bp
+++ b/sigchainlib/Android.bp
@@ -32,12 +32,6 @@
             shared_libs: ["liblog"],
         },
     },
-    // Sigchainlib is whole-statically linked into binaries. For Android.mk-based binaries,
-    // this will drag ASAN symbols into the binary, even for modules using LOCAL_SANITIZE := never.
-    // So disable sanitization for now. b/38456126
-    sanitize: {
-        never: true,
-    },
 }
 
 // Create a dummy version of libsigchain which expose the necessary symbols