test: Do not disable SessionAffinity on >= 4.19
test: Do not disable SessionAffinity on >= 4.19

The previous commit enabled the SessionAffinity feature when running
with KPR=off.

Signed-off-by: Martynas Pumputis <6b0d31c0d563223024da45691584643ac78c96e8@lambda.lt>

cilium/cilium,michi-covalent/cilium,cilium/cilium,michi-covalent/cilium,cilium/cilium,cilium/cilium,michi-covalent/cilium,cilium/cilium,michi-covalent/cilium,michi-covalent/cilium