rust/rust-bin: move bits to rust-bin

Bits that are only used by the rust-bin bbclass should get moved there.
They aren't used by any recipe that includes the rust bbclass.

classes/rust.bbclass

@@ -16,7 +16,7 @@ def rust_base_dep(d):
             deps += " rust-native"
     return deps
 
-DEPENDS_append = " ${@rust_base_dep(d)} patchelf-native"
+DEPENDS_append = " ${@rust_base_dep(d)}"
 
 # BUILD_LDFLAGS
 # 	${STAGING_LIBDIR_NATIVE}
@@ -31,11 +31,6 @@ DEPENDS_append = " ${@rust_base_dep(d)} patchelf-native"
 #	-L${STAGING_BASE_LIBDIR_NATIVE}	\
 #"
 
-oe_runrustc () {
-	bbnote ${RUSTC} ${RUSTC_ARCHFLAGS} ${RUSTC_FLAGS} "$@"
-	"${RUSTC}" ${RUSTC_ARCHFLAGS} ${RUSTC_FLAGS} "$@"
-}
-
 # XXX: for some reason bitbake sets BUILD_* & TARGET_* but uses the bare
 # variables for HOST. Alias things to make it easier for us.
 HOST_LDFLAGS  ?= "${LDFLAGS}"
@@ -45,21 +40,6 @@ HOST_CPPFLAGS ?= "${CPPFLAGS}"
 
 EXTRA_OECONF_remove = "--disable-static"
 
-do_rust_bin_fixups() {
-    for f in `find ${PKGD} -name '*.so*'`; do
-        echo "Strip rust note: $f"
-        ${OBJCOPY} -R .note.rustc $f $f
-    done
-
-    for f in `find ${PKGD}`; do
-        file "$f" | grep -q ELF || continue
-        readelf -d "$f" | grep RUNPATH | grep -q rustlib || continue
-        echo "Set rpath:" "$f"
-        patchelf --set-rpath '$ORIGIN:'${rustlibdir}:${rustlib} "$f"
-    done
-}
-PACKAGE_PREPROCESS_FUNCS += "do_rust_bin_fixups"
-
 rustlib_suffix="${TUNE_ARCH}${TARGET_VENDOR}-${TARGET_OS}/rustlib/${HOST_SYS}/lib"
 # Native sysroot standard library path
 rustlib_src="${prefix}/lib/${rustlib_suffix}"