remove unused roxmltree dependency

Cargo.lock

@@ -2390,12 +2390,6 @@ version = "1.9.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ba39f3699c378cd8970968dcbff9c43159ea4cfbd88d43c00b22f2ef10a435d2"
 
-[[package]]
-name = "roxmltree"
-version = "0.20.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6c20b6793b5c2fa6553b250154b78d6d0db37e72700ae35fad9387a46f487c97"
-
 [[package]]
 name = "rsa"
 version = "0.9.6"
@@ -2548,7 +2542,6 @@ dependencies = [
  "derive_more 1.0.0",
  "futures-util",
  "quick-xml",
- "roxmltree",
  "rustical_dav",
  "rustical_store",
  "serde",
@@ -2573,7 +2566,6 @@ dependencies = [
  "derive_more 1.0.0",
  "futures-util",
  "quick-xml",
- "roxmltree",
  "rustical_dav",
  "rustical_store",
  "serde",
@@ -2596,7 +2588,6 @@ dependencies = [
  "itertools",
  "log",
  "quick-xml",
- "roxmltree",
  "rustical_store",
  "serde",
  "strum",