syncthing.sh: fix remaining f-string backslash escape in remove_folder

syncthing.sh

@@ -253,7 +253,7 @@ remove_folder() {
 import sys, json
 for i, f in enumerate(json.load(sys.stdin), 1):
     label = f["label"] or f["id"]
-    print(f"  {i}) {label} ({f[\"path\"]})")
+    print("  " + str(i) + ") " + label + " (" + f["path"] + ")")
 '
     echo ""
     read -rp "Choose folder to remove [1-${count}]: " CHOICE