Fix build: Revert "SDK: Enable monitor in sdk product."

This reverts commit 0022a035d689a0915a500e2ca88f104d20ffb71f.
diff --git a/target/product/sdk.mk b/target/product/sdk.mk
index f0001cc..22e8b1d 100644
--- a/target/product/sdk.mk
+++ b/target/product/sdk.mk
@@ -80,8 +80,7 @@
 	android \
 	dexdump \
 	lint \
-	monkeyrunner \
-	monitor
+	monkeyrunner
 
 # Native host Java libraries that are parts of the SDK.
 # See development/build/sdk.atree