Update startup script for newer Java version
Update startup script for newer Java version

Remove unnecessary Java version check and require newer Java version.

Signed-off-by: thc202 <43af82ef30812a20fbcf38b99a6f72cdd3a89ac1@gmail.com>

thc202/zaproxy,psiinon/zaproxy,kingthorin/zaproxy,kingthorin/zaproxy,thc202/zaproxy,zaproxy/zaproxy,thc202/zaproxy,kingthorin/zaproxy,zaproxy/zaproxy,kingthorin/zaproxy,psiinon/zaproxy,psiinon/zaproxy,thc202/zaproxy,psiinon/zaproxy,zaproxy/zaproxy,thc202/zaproxy,kingthorin/zaproxy,kingthorin/zaproxy,thc202/zaproxy,kingthorin/zaproxy,zaproxy/zaproxy,zaproxy/zaproxy,psiinon/zaproxy,zaproxy/zaproxy,psiinon/zaproxy,thc202/zaproxy,zaproxy/zaproxy,psiinon/zaproxy