[PATCH] RISC-V Regression: Remove scalable compile option

[Juzhe-Zhong]

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.

---
 gcc/testsuite/lib/target-supports.exp | 1 -
 1 file changed, 1 deletion(-)

diff --git a/gcc/testsuite/lib/target-supports.exp 
b/gcc/testsuite/lib/target-supports.exp
index 7412ac95623..236df6c2c8e 100644
--- a/gcc/testsuite/lib/target-supports.exp
+++ b/gcc/testsuite/lib/target-supports.exp
@@ -11564,7 +11564,6 @@ proc check_vect_support_and_set_flags { } {
         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 {
-- 
2.36.3