procfs: Remove mallinfo from struct procfs_meminfo_entry_s

[xiaoxiang781216]

Summary

let's call mm_mallinfo directly

Impact

Code refactor

Testing

Pass CI

[acassis]

Hi @xiaoxiang781216 what are the benefit of this modification? I think the code became simple/easier, but are other benefits doing this way?

[xiaoxiang781216]

Hi @xiaoxiang781216 what are the benefit of this modification? I think the code became simple/easier, but are other benefits doing this way?

@acassis for consistence. You can see that meminfo_read already call mm_memdump directly, which make the abstraction through callback look very strange.