* Delete deploy contract tool. Move mock to its own package as testonly with some helper functions
* gofmt contracts/deposit/mock/mock.go
* move stategen mock.go to its on testonly pkg
* move password_reader_mock.go to mock testonly package
* move mock keymanager to its own testonly package
* move attestations mock
* move voluntaryexits mock
* Move slashings mock to mock pkg
* move the slasher mock
Co-authored-by: prylabs-bulldozer[bot] <58059840+prylabs-bulldozer[bot]@users.noreply.github.com>
* Value assigned to a variable is never read before being overwritten
* The result of append is not used anywhere
* Suspicious assignment of range-loop vars detected
* Unused method receiver detected
* Revert "Auxiliary commit to revert individual files from 54edcb445484a2e5d79612e19af8e949b8861253"
This reverts commit bbd1e1beabf7b0c5cfc4f514dcc820062ad6c063.
* Method modifies receiver
* Fix test
* Duplicate imports detected
* Incorrectly formatted error string
* Types of function parameters can be combined
* One more "Unused method receiver detected"
* Unused parameter detected in function
* Move domain function and all signing root functions from beacon-chain/core/helpers to beacon-chain/core
* @terencechain suggestion to put these methods under core/signing
