remove the block fill rate limit of 70% when farming a block

[arvidn]

Purpose:

to increase transaction rate

Current Behavior:

Farmers only fill blocks to 70% full

New Behavior:

Farmers fill blocks all the way. But blocks are compressed and have potential to fit more transactions.

Testing Notes:

[coveralls-official]

Pull Request Test Coverage Report for Build 12281997874

Warning: This coverage report may be inaccurate.

This pull request's base commit is no longer the HEAD commit of its target branch. This means it includes changes from outside the original pull request, including, potentially, unrelated coverage changes.

• For more information on this, see Tracking coverage changes with pull request builds.
• To avoid this issue with future PRs, see these Recommended CI Configurations.
• For a quick fix, rebase this PR at GitHub. Your next report should be accurate.

Details

• 17 of 17 (100.0%) changed or added relevant lines in 2 files are covered.
• 547 unchanged lines in 23 files lost coverage.
• Overall coverage increased (+0.01%) to 91.482%

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Files with Coverage Reduction	New Missed Lines	%
chia/timelord/timelord.py	1	80.0%
chia/full_node/pending_tx_cache.py	1	96.55%
chia/_tests/wallet/test_transaction_store.py	1	99.58%
chia/wallet/util/wallet_sync_utils.py	1	86.07%
chia/daemon/client.py	1	74.58%
chia/server/rate_limit_numbers.py	1	97.78%
chia/_tests/core/full_node/stores/test_full_node_store.py	1	99.5%
chia/_tests/core/full_node/stores/test_block_store.py	2	99.53%
chia/_tests/pools/test_pool_rpc.py	3	99.07%
chia/wallet/wallet_node.py	3	88.1%

Totals
Change from base Build 12209661102:	0.01%
Covered Lines:	104661
Relevant Lines:	114216

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💛 - Coveralls