fix: remove validator fee from same-blockchain bids #545

Job	Run time
Build Docker images (amd64)	7m 44s
shared / Format	29s
shared / Bandit	25s
shared / Lint	27s
shared / Sort	26s
shared / Static Code Analysis	2m 44s
build / Build and attach .deb and .whl packages (3.10, amd64)	5m 28s
shared / Unit test for Python 3.10 on ubuntu-22.04	46s
shared / Unit test for Python 3.11 on ubuntu-22.04	41s
shared / Unit test for Python 3.12 on ubuntu-22.04	38s
shared / Unit test for Python 3.13 on ubuntu-22.04	1m 16s
install (ubuntu-20.04)	2m 20s
install (ubuntu-22.04)	1m 42s
E2E tests (amd64)	5m 39s
	30m 45s

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