Merge pull request #2022 from aap-sc/aap-sc/another_unused_variable_warning

remove unused EGS constant from vsm4r_vs handler

Author: aswaterman

riscv/insns/vsm4r_vs.h

@@ -2,8 +2,6 @@
 
 #include "zvksed_ext_macros.h"
 
-const uint32_t EGS = 4;
-
 require_vsm4_constraints;
 require_align(insn.rd(), P.VU.vflmul);
 require_vs2_align_eglmul(128);