Since we already set scalable vectorization by default, this flag is redundant.
Also, we are start to full coverage testing with different compile option.
E.g --param=riscv-autovec-preference=fixed-vlmax.
To avoid compile option confusion. Remove it.
gcc/testsuite/ChangeLog:
* lib/target-supports.exp: Remove scalable compile option.
set dg-do-what-default run
} elseif [istarget riscv64-*-*] {
if [check_effective_target_riscv_vector_hw] {
- lappend DEFAULT_VECTCFLAGS "--param" "riscv-autovec-preference=scalable"
lappend DEFAULT_VECTCFLAGS "--param" "riscv-vector-abi"
set dg-do-what-default run
} else {