test/k8sT: move creation of resources outside of `It`
test/k8sT: move creation of resources outside of `It`

* Rename "Checks Service" to "Checks service on same node".
* Move creation / deletion of resources for "Checks service on same node" to
`BeforeEach` and `AfterEach`.

* Do some misc. cleanup in other tests by removing redundant type declarations,
moving all `var` declarations under `var(...)`.

Signed-off by: Ian Vernon <ian@cilium.io>

michi-covalent/cilium,cilium/cilium,cilium/cilium,scanf/cilium,cilium/cilium,eloycoto/cilium,scanf/cilium,michi-covalent/cilium,tklauser/cilium,eloycoto/cilium,eloycoto/cilium,eloycoto/cilium,michi-covalent/cilium,eloycoto/cilium,scanf/cilium,eloycoto/cilium,scanf/cilium,tgraf/cilium,scanf/cilium,scanf/cilium,tklauser/cilium,cilium-team/cilium,cilium/cilium,tgraf/cilium,tklauser/cilium,tgraf/cilium,tklauser/cilium,michi-covalent/cilium,scanf/cilium,tklauser/cilium,tgraf/cilium,tgraf/cilium,michi-covalent/cilium,cilium/cilium,tgraf/cilium,eloycoto/cilium,cilium-team/cilium