wxwidgets: remove -fvisibility-inlines-hidden from makefiles
wxwidgets: remove -fvisibility-inlines-hidden from makefiles

build breaks on Ubuntu 8.10

John-NY/overo-oe,John-NY/overo-oe,scottellis/overo-oe,John-NY/overo-oe,yyli/overo-oe,scottellis/overo-oe,yyli/overo-oe,nzjrs/overo-openembedded,John-NY/overo-oe,nzjrs/overo-openembedded,yyli/overo-oe,scottellis/overo-oe,scottellis/overo-oe,nzjrs/overo-openembedded,yyli/overo-oe,nzjrs/overo-openembedded,John-NY/overo-oe,yyli/overo-oe,scottellis/overo-oe,yyli/overo-oe,John-NY/overo-oe,yyli/overo-oe,scottellis/overo-oe,yyli/overo-oe,nzjrs/overo-openembedded,scottellis/overo-oe,John-NY/overo-oe,nzjrs/overo-openembedded,nzjrs/overo-openembedded