Revert "feat: try out new SSH layer again"

Should've tested this before pushing, still broken lol.

This reverts commit 23b4d2a.

Author: msfjarvis

app/src/main/java/app/passwordstore/util/features/Feature.kt

@@ -14,7 +14,7 @@ enum class Feature(
 ) {
 
   /** Opt into the new SSH layer implemented as a freestanding module. */
-  EnableNewSSHLayer(true, "enable_new_ssh"),
+  EnableNewSSHLayer(false, "enable_new_ssh"),
 
   /** Opt into a cache layer for PGP passphrases. */
   EnablePGPPassphraseCache(false, "enable_gpg_passphrase_cache"),