tests: confidential_common: Remove unneeded ensure_yq call

This test is called from `tests/integration/run_kuberentes_tests.sh`,
which already ensures that yq is installed.

Signed-off-by: Fabiano Fidêncio <fabiano.fidencio@intel.com>

tests/integration/kubernetes/confidential_common.sh

@@ -67,7 +67,6 @@ function check_hypervisor_for_confidential_tests_tee_only() {
 
 # Common check for confidential tests.
 function is_confidential_runtime_class() {
-	ensure_yq
 	if check_hypervisor_for_confidential_tests "${KATA_HYPERVISOR}"; then
 		return 0
 	fi