Remove submodule embassy

Author: j-devel

.gitmodules

@@ -16,6 +16,3 @@
 [submodule "examples/xbd-net/libcoap"]
 	path = examples/xbd-net/libcoap
 	url = https://github.com/AnimaGUS-minerva/libcoap
-[submodule "examples/xbd-net/crates/embassy"]
-	path = examples/xbd-net/crates/embassy
-	url = https://github.com/AnimaGUS-minerva/embassy

examples/xbd-net/Makefile

@@ -3,18 +3,9 @@ all: build-native
 include ../native.mk
 include ../esp32.mk
 
-#submodules
-
-get-crate-embassy:
-	[ -e "crates/embassy/.git" ] || \
-		(cd crates && git submodule init embassy && git submodule update)
-sync-crate-embassy:
-	git submodule update --remote crates/embassy && \
-		cd crates/embassy && git checkout minerva && git pull
-
 # native
 
-build-native: get-crate-embassy libcoap-riot-pkg
+build-native: libcoap-riot-pkg
 	make native-build-module
 	make native-build-riot
 
@@ -33,7 +24,7 @@ run-native-tap-second:# in second shell
 
 # esp32
 
-build-esp32: get-crate-embassy libcoap-riot-pkg
+build-esp32: libcoap-riot-pkg
 	make esp32-build-module
 	RIOT_BOARD=esp32-ethernet-kit-v1_0  make esp32-build-riot
 build-esp32-minimal: