Remove outdated SMM development profile mention from manual install directions

Author: budak7273

modules/ROOT/pages/ManualInstallDirections.adoc

@@ -4,9 +4,11 @@
 ====
 We highly suggest you follow the directions xref:ForUsers/SatisfactoryModManager.adoc[here] to use mods and SML instead,
 since it vastly simplifies the process of installing, testing, and using mods.
+====
 
-If you're a mod developer, you should still strongly consider using the launcher.
-You can to change your selected profile to `development` to handle installing SML for you.
+[IMPORTANT]
+====
+We offer no support for manual installs on the Discord due to the high potential for error in the process.
 ====
 
 == Installing Mods