Revert "Use wget for libaio_0.3.104-1_i386.deb as well"

This reverts commit e15643337ab969111e6d86dc2221cb495d57d3f2.
Revert "retry wget"

This reverts commit 1ee517f174b5905c39f86ccba7ffa3068f709c2f.
Revert "fix before_install_oracle.sh"

This reverts commit 2e8f84eaa28c388d147f7c2bdf6d41c40a198045.
Revert "Use wget to get oracle debian package to work around http header errors"

This reverts commit 0d7e76fd1f3f5b9ac1d351b3345055f266e316b9.