bpf, ipcache: unconditionally assume LPM trie delete/dump support #24377
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Delete [1] and dump [2] operations on LPM trie maps are supported since Linux kernel version 4.16. For Cilium v1.14, the minimum required kernel version is 4.19.57 [3]. Thus we can now unconditionally assume support for delete and dump operations on the ipcache map.
[1] torvalds/linux@e454cf5
[2] torvalds/linux@b471f2f
[3] https://docs.cilium.io/en/latest/operations/system_requirements/#base-requirements
For #22116