Remove symlinks

tutorials/rp/pico-rndis-device/Makefile

@@ -8,13 +8,19 @@ endif
 all example:
 	true
 
-build build/firmware.uf2: pico-sdk main.c net.c
+build build/firmware.uf2: pico-sdk main.c net.c net.h
 	$(MKBUILD)
 	cd build && cmake -G "Unix Makefiles" .. && make
 
+net.c: ../../mqtt/mqtt-dashboard/device/net.c net.h
+	cp $< $@
+
+net.h: ../../mqtt/mqtt-dashboard/device/net.h
+	cp $< $@
+
 pico-sdk:
 	git clone --depth 1 -b 2.1.0 https://github.com/raspberrypi/pico-sdk $@
 	cd $@ && git submodule update --init
 
 clean:
-	$(RM) pico-sdk build
+	$(RM) pico-sdk build net.c net.h

tutorials/rp/pico-rndis-device/net.c

@@ -1 +0,0 @@
-../../mqtt/mqtt-dashboard/device/net.c

tutorials/rp/pico-rndis-device/net.h

@@ -1 +0,0 @@
-../../mqtt/mqtt-dashboard/device/net.h