Remove unnecessary stat64 pointer casts #51786
                
     Merged
            
            
          
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In effect, these just casted
&mut stat64to*mut stat64, twice.That's harmless, but it masked a problem when this was copied to new
code calling
fstatat, which takes a pointer tostruct stat. Thatwill be fixed by #51785, but let's remove the unnecessary casts here
too.