Remove the qemu workaround for ppc64

Author: sayantn

ci/run.sh

@@ -82,10 +82,6 @@ cargo_test() {
         wasm32*)
             cmd="$cmd --nocapture"
             ;;
-        # qemu has an erratic behavior on those tests
-        powerpc64*)
-            cmd="$cmd --skip test_vec_lde_u16 --skip test_vec_lde_u32 --skip test_vec_expte"
-            ;;
     esac
 
     if [ "$SKIP_TESTS" != "" ]; then