Tools: remove redundant DroneCAN packet buffer initialization #40919

Job	Run time
build (stm32f7, chibios, 10)	6m 9s
build (stm32h7, chibios, 10)	5m 23s
build (fmuv2-plane, chibios, 10)	4m 4s
build (periph-build, chibios, 10)	6m 8s
build (iofirmware, chibios, 10)	3m 37s
build (CubeOrange-bootloader, chibios, 10)	2m 58s
build (fmuv3-bootloader, chibios, 10)	3m 3s
build (revo-bootloader, chibios, 10)	3m 8s
build (stm32h7-debug, chibios, 10)	4m 35s
build (fmuv3, chibios, 10)	7m 32s
build (revo-mini, chibios, 10)	6m 12s
build (MatekF405-Wing, chibios, 10)	7m 4s
build (CubeOrange-ODID, chibios, 10)	4m 36s
build (CubeRedPrimary-bootloader, chibios, 10)	3m 4s
build (configure-all, chibios, 10)	12m 57s
build (build-options-defaults-test, chibios, 10)	9m 17s
build (signing, chibios, 10)	4m 42s
build (CubeOrange-PPP, chibios, 10)	4m 9s
build (SOHW, chibios, 10)	5m 30s
build (Pixhawk6X-PPPGW, chibios, 10)	3m 37s
build (new-check, chibios, 10)	6m 42s
	1h 54m 27s

Provide feedback