vmx: Convert virVMXConfigScanResultsCollector() to use STRCASESKIP()
vmx: Convert virVMXConfigScanResultsCollector() to use STRCASESKIP()

Now that we have STRCASESKIP() there's no need to open code it.
Convert virVMXConfigScanResultsCollector() so that it uses this
new macro.

Signed-off-by: Michal Privoznik <83d82aaba2eed257f4814b0c239c260c4caaadf0@redhat.com>
Reviewed-by: Tim Wiederhake <da93ee425e056cfcf1ddac9fc87851b25464abf4@redhat.com>

jfehlig/libvirt,jfehlig/libvirt,olafhering/libvirt,libvirt/libvirt,libvirt/libvirt,libvirt/libvirt,olafhering/libvirt,olafhering/libvirt,zippy2/libvirt,libvirt/libvirt,jfehlig/libvirt,olafhering/libvirt,zippy2/libvirt,zippy2/libvirt,zippy2/libvirt,jfehlig/libvirt