{cargo,rust}-1.49.0: simplify as in https://github.com/meta-rust/meta-rust/pull/299

Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>

recipes-devtools/rust/rust_1.49.0.bb

@@ -1,4 +1,4 @@
-require rust.inc
+require rust-target.inc
 require rust-source-${PV}.inc
 require rust-snapshot-${PV}.inc
 
@@ -6,13 +6,6 @@ SRC_URI += "\
     file://0001-rustc_target-Fix-dash-vs-underscore-mismatches-in-op.patch \
     "
 
-DEPENDS += "rust-llvm (=${PV})"
-
-# Otherwise we'll depend on what we provide
-INHIBIT_DEFAULT_RUST_DEPS_class-native = "1"
-# We don't need to depend on gcc-native because yocto assumes it exists
-PROVIDES_class-native = "virtual/${TARGET_PREFIX}rust"
-
 do_compile () {
     rust_runx build --stage 2
 }
@@ -20,5 +13,3 @@ do_compile () {
 rust_do_install() {
     rust_runx install
 }
-
-BBCLASSEXTEND = "native"