Remove chrome_set_ver.py (existed for compatibility)
Remove chrome_set_ver.py (existed for compatibility)

Via the CQ-DEPEND, nothing invokes chrome_set_ver.py, they invoke
chrome_set_ver.  Thus remove the compatibility name.

BUG=chromium-os:26916
TEST=emerge-<board> chromeos-chrome
CQ-DEPEND=I9f2d7a1435d4282abef4ca6ef9486bc9f06aacc5

Change-Id: I144c5407f33f011b83dbdc4c239d2be83fb33945
Reviewed-on: https://gerrit.chromium.org/gerrit/17105
Commit-Ready: Brian Harring <fdc2d0a2e2340b623587cee5ea8dff425d1eb1f3@chromium.org>
Reviewed-by: Brian Harring <fdc2d0a2e2340b623587cee5ea8dff425d1eb1f3@chromium.org>
Tested-by: Brian Harring <fdc2d0a2e2340b623587cee5ea8dff425d1eb1f3@chromium.org>

bpsinc-native/src_third_party_chromite,zhang0137/chromite,bpsinc-native/src_third_party_chromite,bpsinc-native/src_third_party_chromite,chadversary/chromiumos.chromite,coreos/chromite,chadversary/chromiumos.chromite,zhang0137/chromite,zhang0137/chromite,coreos/chromite,coreos/chromite