Remove files in website repo before publishing from lattice.
Remove files in website repo before publishing from lattice.

[#93570886]

Signed-off-by: David Wadden <ff4ebafbe4a7d77cde45f9afefafd7a5dfa94f36@pivotal.io>

cloudfoundry-incubator/ltc,davidwadden/lattice-release,davidwadden/lattice-release,SrinivasChilveri/lattice,svrc-pivotal/lattice,felipeg48/lattice,davidwadden/lattice,datachand/lattice,svrc-pivotal/lattice,felipeg48/lattice,Klaudit/lattice,Klaudit/lattice,cloudfoundry-incubator/ltc,Klaudit/lattice,SrinivasChilveri/lattice,svrc-pivotal/lattice,davidwadden/lattice,datachand/lattice,svrc-pivotal/lattice,SrinivasChilveri/lattice,datachand/lattice,datachand/lattice,SrinivasChilveri/lattice,Klaudit/lattice