Remove BLEEPeval directory on master branch

[tkdlqm2]

• BLEEPeval 디렉토리 삭제
• BLEEPeval 디렉토리에 정의된 CMake Target 들과 dependency가 있는 test들 또한 삭제
  1. tests/regtest/2_sybli
• 디렉토리 명 변경
  1. tests/regtest/3_BLEEP -> tests/regtest/2_BLEEP
  2. tests/regtest/4_monero -> tests/regtest/3_monero
• 비활성화 reg test 활성화로 변경
  1. shadow-bitcoin
  2. shadow-dependencies
  3. BLEEP-simpleconnect
  4. BLEEP-gossip-10node
  5. shadow-syscalls