Block header repo impl removed (#2286) #7904

Job	Run time
MacOS: Build Debug	13m 21s
MacOS: Build Release	24m 43s
MacOS WAVM: Build Debug	16m 59s
Self-hosted: Linux: gcc-13 coverage/sonar	0s
Self-hosted: Linux: gcc-13 ASAN	37m 2s
Self-hosted: Linux: clang-19 TSAN WAVM	29m 49s
Self-hosted: Linux: clang-19 UBSAN	17m 32s
Linux: clang-tidy	2m 36s
${{ matrix.options.name }}	0s
Self-hosted docker: Build Debug	20m 5s
Self-hosted docker: Build Release	21m 21s
Self-hosted docker: Build RelWithDebInfo	19m 48s
Zombie-Tests (PVF preparation & execution time, test-polkadot-functional-0001-parachains-pvf)	34m 45s
Zombie-Tests (BEEFY voting and finality, test MMR proofs. Assumes Rococo sessions of 1 minute, te...	5m 23s
Zombie-Tests (Test if disputes triggered on finalized blocks within scope always end as valid, te...	7m 19s
Zombie-Tests (Test if disputes triggered on finalized blocks out of scope never get to be confirm...	7m 2s
Zombie-Tests (Approval voting coalescing does not lag finality, test-polkadot-functional-0009-app...	18m 7s
Zombie-Tests (Test we are producing blocks at 6 seconds clip, test-polkadot-functional-0011-async...	7m 3s
Zombie-Tests (Systematic chunk recovery is used if the chunk mapping feature is enabled., test-po...	15m 41s
Zombie-Tests (Warp sync from polkadot node, test-custom-0001-validators-warp-sync)	5m 45s
	5h 4m 21s

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