docs: Remove credential info

examples/product-sample-supabase-kt/local.properties

@@ -0,0 +1,11 @@
+## This file must *NOT* be checked into Version Control Systems,
+# as it contains information specific to your local configuration.
+#
+# Location of the SDK. This is only used by Gradle.
+# For customization when using a Version Control System, please read the
+# header note.
+#Mon Jul 24 23:36:03 ICT 2023
+sdk.dir=/Users/hieuvu/Library/Android/sdk
+API_KEY=YOUR_SUPABASE_API_KEY
+SECRET=YOUR_SUPABASE_SECRET
+SUPABASE_URL=YOUR_SUPABASE_URL