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The following directives to ignore warnings where in the PerconaFT build in tokudb.
These generate errors when g++ ... -o xxx.so is used to compile are shared object.

As these don't actually hit any warnings they have been removed.

* -Wno-ignored-attributes
* -Wno-pointer-bool-conversion
Signed-off-by: Daniel Black <daniel.black@au.ibm.com>