target/riscv/cpu.c: remove set_vext_version()

This setter is doing nothing else but setting env->vext_ver. Assign the
value directly.

Signed-off-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Reviewed-by: LIU Zhiwei <zhiwei_liu@linux.alibaba.com>
Reviewed-by: Weiwei Li <liweiwei@iscas.ac.cn>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20230517135714.211809-3-dbarboza@ventanamicro.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>

target/riscv/cpu.c

@@ -252,11 +252,6 @@ static void set_priv_version(CPURISCVState *env, int priv_ver)
     env->priv_ver = priv_ver;
 }
 
-static void set_vext_version(CPURISCVState *env, int vext_ver)
-{
-    env->vext_ver = vext_ver;
-}
-
 #ifndef CONFIG_USER_ONLY
 static uint8_t satp_mode_from_str(const char *satp_mode_str)
 {
@@ -871,7 +866,7 @@ static void riscv_cpu_validate_v(CPURISCVState *env, RISCVCPUConfig *cfg,
         qemu_log("vector version is not specified, "
                  "use the default value v1.0\n");
     }
-    set_vext_version(env, vext_version);
+    env->vext_ver = vext_version;
 }
 
 /*