cleanup: Remove unnecessary/inconsistent quoting from fd arg

src/async.zsh

@@ -72,5 +72,5 @@ _zsh_autosuggest_async_response() {
 	fi
 
 	# Always remove the handler
-	zle -F "$1"
+	zle -F $1
 }

zsh-autosuggestions.zsh

@@ -827,7 +827,7 @@ _zsh_autosuggest_async_response() {
 	fi
 
 	# Always remove the handler
-	zle -F "$1"
+	zle -F $1
 }
 
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