cabinet: remove unnecessary function

[Jeff Latimer]

FDI_realloc is mostly redundant as the copying of buf, which is its real 
purpose, is unnecessary as buf is totally overwritten in 
FDI_read_string.  It is possible to construct a test but how good a 
cabinet file would be needed?  I don't know that much about their structure.

Jeff

---
  dlls/cabinet/fdi.c |   33 ++++++++-------------------------
  1 files changed, 8 insertions(+), 25 deletions(-)
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