bpf/Makefile: Remove workaround for complexity issue
bpf/Makefile: Remove workaround for complexity issue

On master and with kernels 5.10+, we have a complexity issue when
ENABLE_HOST_SERVICES_FULL is undefined (i.e., socket-level load balancing
is disabled and additional code compiled in bpf_lxc as a replacement).
Our verifier test included a workaround for that issue, by always
defining ENABLE_HOST_SERVICES_FULL on newer kernels.

This commit removes that workaround since the previous commit fixed the
complexity issue.

Signed-off-by: Paul Chaignon <a027184a55211cd23e3f3094f1fdc728df5e0500@cilium.io>

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