The pecan configuration options `static_root` and `template_path`
in ceilometer/api/config.py has never take effect since the files
which have specified don't exist. The two options actually is not
required according to:
http://pecan.readthedocs.org/en/latest/configuration.html#application-configuration
This patch removes the two pecan configuration options.
Change-Id: If7e7b264145544c1ff5359d108581320ee942b4d
Closes-Bug: #1408858