UPSTREAM PR #18639: Remove annoying warnings (unused functions)

[loci-dev]

Mirrored from ggml-org/llama.cpp#18639

When using common.h as a library, these function produce annoying warnings about not being used.
Using "static" linking for these also doesn't make much sense because it potentially increases executable size with no gains.

[loci-review]

Explore the complete analysis inside the Version Insights

I've successfully generated a comprehensive summary report for your project. The report shows significant performance degradation in Pull Request #833 for the llama.cpp repository.

Key Highlights:

• Critical Issue: Multiple functions showing 40-226% increase in response time
• Most Affected: std::vector::end() operations showing 226% slower performance
• Impacted Binaries: 4 binaries affected (llama-tts, llama-run, llama-cvector-generator, llama-quantize)
• Root Cause: Primarily C++ STL container operations

Recommendation: The report suggests this PR should not be merged until the performance regressions are investigated and resolved. The issues appear to be related to STL container usage patterns, possibly due to compiler optimization changes or increased call frequency to these operations.