Remove software_version_id generation

Remove per-target prerequisites that created ./include and wrote a timestamped DEVICE_SOFTWARE_VERSION_ID header. Deleted the mkdir and echo lines from several gd32_emac_* Makefile.GD32 files to stop automatic per-build generation of software_version_id.h so its creation can be handled centrally or omitted.

Author: vanvught

gd32_emac_artnet_pixel_multi/Makefile.GD32

@@ -32,5 +32,3 @@ SRCDIR=firmware lib
 include ../firmware-template-gd32/Rules.mk
 
 prerequisites:
-	mkdir -p ./include
-	@echo "constexpr uint32_t DEVICE_SOFTWARE_VERSION_ID="$(shell date "+%s")";" > ./include/software_version_id.h

gd32_emac_ddp_pixel_multi/Makefile.GD32

@@ -28,6 +28,4 @@ SRCDIR=firmware lib
 include ../firmware-template-gd32/Rules.mk
 
 prerequisites:
-	mkdir -p ./include
-	@echo "constexpr uint32_t DEVICE_SOFTWARE_VERSION_ID="$(shell date "+%s")";" > ./include/software_version_id.h
 

gd32_emac_e131_dmx_multi/Makefile.GD32

@@ -29,5 +29,3 @@ SRCDIR=firmware lib
 include ../firmware-template-gd32/Rules.mk
 
 prerequisites:
-	mkdir -p ./include
-	@echo "constexpr uint32_t DEVICE_SOFTWARE_VERSION_ID="$(shell date "+%s")";" > ./include/software_version_id.h

gd32_emac_e131_pixel_multi/Makefile.GD32

@@ -31,5 +31,3 @@ SRCDIR=firmware lib
 include ../firmware-template-gd32/Rules.mk
 
 prerequisites:
-	mkdir -p ./include
-	@echo "constexpr uint32_t DEVICE_SOFTWARE_VERSION_ID="$(shell date "+%s")";" > ./include/software_version_id.h

gd32_emac_llrp/Makefile.GD32

@@ -22,5 +22,3 @@ SRCDIR=firmware lib
 include ../firmware-template-gd32/Rules.mk
 
 prerequisites:
-	mkdir -p ./include
-	@echo "constexpr uint32_t DEVICE_SOFTWARE_VERSION_ID="$(shell date "+%s")";" > ./include/software_version_id.h

gd32_emac_pp_pixel_multi/Makefile.GD32

@@ -29,5 +29,3 @@ SRCDIR=firmware lib
 include ../firmware-template-gd32/Rules.mk
 
 prerequisites:
-	mkdir -p ./include
-	@echo "constexpr uint32_t DEVICE_SOFTWARE_VERSION_ID="$(shell date "+%s")";" > ./include/software_version_id.h