Remove RPM files from pre_build_hook script
Remove RPM files from pre_build_hook script

CentOS isn't a platform supported by MOS 7 and 8.

Change-Id: I139f9e2dabf6296542144201efe0381a40376a38

stackforge/fuel-plugin-lma-collector,stackforge/fuel-plugin-lma-collector,stackforge/fuel-plugin-lma-collector,stackforge/fuel-plugin-lma-collector,stackforge/fuel-plugin-lma-collector