review comment: remove unused from constants

Author: H-Grobben

canopen/sdo/constants.py

@@ -4,7 +4,6 @@
 
 # Command, index, subindex
 SDO_STRUCT = struct.Struct("<BHB")
-SDO_BLOCKINIT_STRUCT = struct.Struct("<BHBI")  # Command + seqno, index, subindex, size
 SDO_BLOCKACK_STRUCT = struct.Struct("<BBB") # c + ackseq + new blocksize
 SDO_BLOCKEND_STRUCT = struct.Struct("<BH") # c + CRC
 SDO_ABORT_STRUCT = struct.Struct("<BHBI") # c +i + si + Abort code