rust: Drop cross/crosssdk

Now that target config json is provided by rust-target-config.bbclass,
the need for the cross and crosssdk recipes is removed. Drop them and
simplify dependencies accordingly.

(From OE-Core rev: 4b54f5f52b33db4d2fe95c5faef033b6c6b37b7d)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-devtools/rust/rust-cross.inc

@@ -1,47 +0,0 @@
-RUST_TARGETGENS = "BUILD HOST TARGET"
-
-# Otherwise we'll depend on what we provide
-INHIBIT_DEFAULT_RUST_DEPS = "1"
-
-# Unlike native (which nicely maps it's DEPENDS) cross wipes them out completely.
-# Generally, we (and cross in general) need the same things that native needs,
-# so it might make sense to take it's mapping. For now, though, we just mention
-# the bits we need explicitly.
-DEPENDS += "rust-llvm-native"
-DEPENDS += "rust-native"
-
-# In the cross compilation case, rustc doesn't seem to get the rpath quite
-# right. It manages to include '../../lib/${TARGET_PREFIX}', but doesn't
-# include the '../../lib' (ie: relative path from cross_bindir to normal
-# libdir. As a result, we end up not being able to properly reference files in normal ${libdir}.
-# Most of the time this happens to work fine as the systems libraries are
-# subsituted, but sometimes a host system will lack a library, or the right
-# version of a library (libtinfo was how I noticed this).
-#
-# FIXME: this should really be fixed in rust itself.
-# FIXME: using hard-coded relative paths is wrong, we should ask bitbake for
-#        the relative path between 2 of it's vars.
-HOST_POST_LINK_ARGS:append = " -Wl,-rpath=../../lib"
-BUILD_POST_LINK_ARGS:append = " -Wl,-rpath=../../lib"
-
-# We need the same thing for the calls to the compiler when building the runtime crap
-TARGET_CC_ARCH:append = " --sysroot=${STAGING_DIR_TARGET}"
-
-do_rust_setup_snapshot () {
-}
-
-do_configure () {
-}
-
-do_compile () {
-}
-
-do_install () {
-	mkdir -p ${D}${prefix}/${base_libdir_native}/rustlib
-	cp ${WORKDIR}/targets/${TARGET_SYS}.json ${D}${prefix}/${base_libdir_native}/rustlib
-}
-
-rust_cross_sysroot_preprocess() {
-    sysroot_stage_dir ${D}${prefix}/${base_libdir_native}/rustlib ${SYSROOT_DESTDIR}${prefix}/${base_libdir_native}/rustlib
-}
-SYSROOT_PREPROCESS_FUNCS += "rust_cross_sysroot_preprocess"

meta/recipes-devtools/rust/rust-cross_1.62.0.bb

@@ -1,8 +0,0 @@
-require rust.inc
-inherit cross
-require rust-cross.inc
-require rust-source.inc
-
-DEPENDS += "virtual/${TARGET_PREFIX}gcc virtual/${TARGET_PREFIX}compilerlibs virtual/libc"
-PROVIDES = "virtual/${TARGET_PREFIX}rust"
-PN = "rust-cross-${TUNE_PKGARCH}-${TCLIBC}"

meta/recipes-devtools/rust/rust-crosssdk_1.62.0.bb

@@ -1,8 +0,0 @@
-require rust.inc
-inherit crosssdk
-require rust-cross.inc
-require rust-source.inc
-
-DEPENDS += "virtual/${TARGET_PREFIX}gcc-crosssdk virtual/nativesdk-${TARGET_PREFIX}compilerlibs virtual/nativesdk-libc"
-PROVIDES = "virtual/nativesdk-${TARGET_PREFIX}rust"
-PN = "rust-crosssdk-${TUNE_PKGARCH}-${RUST_LIBC}"