pijul: remove unnecessary bindgen workarounds

srcpkgs/pijul/patches/bindgen.patch

@@ -1,10 +1,9 @@
 --- a/Cargo.toml
 +++ b/Cargo.toml
-@@ -133,3 +133,7 @@
+@@ -133,3 +133,6 @@
  version = "2.0"
  [target."cfg(unix)".dependencies.tokio-uds]
  version = "0.2"
 +
 +[patch.crates-io]
-+"bindgen" = {git = 'https://github.com/Duncaen/rust-bindgen', rev = "e70d9568887ffb6c2a7d7d165a71aed311a29129"}
 +"sequoia-rfc2822" = {path = '/builddir/sequoia-v0.9.0/rfc2822'}

srcpkgs/pijul/template

@@ -1,8 +1,9 @@
 # Template file for 'pijul'
 pkgname=pijul
 version=0.12.2
-revision=4
+revision=5
 build_style=cargo
+build_helper=rust
 _sequoia_ver=0.9.0
 hostmakedepends="pkg-config clang"
 makedepends="libsodium-devel openssl-devel nettle-devel"
@@ -15,12 +16,6 @@ distfiles="https://crates.io/api/v1/crates/pijul/${version}/download>pijul-${ver
 checksum="f92a3f4063e780ca45c161ceb0f42baf34dfeddf3359ebf6c2e0442d9abb5889
  71823c88b9666611f3cfa6b1d923bd66fda92fa6a53368b195bd2f962fdf7f4b"
 
-if [ "$CROSS_BUILD" ]; then
-	export HOST_CC="$BUILD_CC"
-	export HOST_CFLAGS="$BUILD_CFLAGS"
-	export BINDGEN_EXTRA_CLANG_ARGS="--sysroot=$XBPS_CROSS_BASE"
-fi
-
 # We only want to install the binary, so don't run cargo install
 do_install() {
 	vbin target/${RUST_TARGET}/release/pijul