Remove unused ARC implementation

Removed the Adaptive Replacement Cache (ARC) implementation, initially
introduced as a block replacement algorithm. While ARC has been noted
for its potential to improve hit ratios, it is currently not in use and
adds unnecessary maintenance overhead. Until we develop a more effective
cache replacement policy and management system, we will continue to rely
on the Least Frequently Used (LFU) algorithm as our sole cache replacement
strategy. Notably, LFU is utilized in conjunction with the tier-1 JIT
compiler.