[acpica] Re-enable UBSAN

Fixed: 41663
Change-Id: I25243cac8d39deb3fd7ba4095e2b4755bac516bd
diff --git a/BUILD.gn b/BUILD.gn
index b508081..327e5f0 100644
--- a/BUILD.gn
+++ b/BUILD.gn
@@ -28,13 +28,14 @@
   visibility = [ ":*" ]
 
   cflags = [
+    "-Wno-conversion",
     "-Wno-extern-c-compat",
     "-Wno-implicit-fallthrough",
     "-Wno-incompatible-pointer-types-discards-qualifiers",
     "-Wno-null-pointer-arithmetic",
     "-Wno-null-pointer-subtraction",
-    "-Wno-unused-but-set-variable",
     "-Wno-unused-but-set-parameter",
+    "-Wno-unused-but-set-variable",
   ]
 }
 
@@ -53,13 +54,6 @@
 
   configs += [
     ":disable_warnings",
-
-    # TODO(41663): UBSan has found an instance of undefined behavior in this target.
-    # Disable UBSan for this target temporarily until it is migrated into CI/CQ.
-    "//build/config:temporarily_disable_ubsan_do_not_use",
-
-    # TODO(fxb/58162): delete the below and fix compiler warnings
-    "//build/config:Wno-conversion",
   ]
 
   # This is a public config, since it impacts our header files.