Merge six easy pieces from the BUF_REMOVAL branch:
r14271  Audit a few buffer sizes, increase one.
r14280  Audit buffer size.
r14296  Remove a few unneeded header files.
r14310  Replace fixed size buffers with a large enough buffers.
r14338  Remove a dead assignment in print_bbcs and make global variable
        print_fd a local variable.
r14359  Remove a benign macro redefinition in cachegrind.


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@14595 a5019735-40e9-0310-863c-91ae7b9d1cf9