Remove lcovrc configure file

This commit is inspired from a commit in phosphor-certificate-manager
Which had a similar problem.

It seems that this configuration file is a relic that's being
carried forward since autotools & does not really have necessity.

For more details, please refer :
https://gerrit.openbmc.org/c/openbmc/phosphor-certificate-manager/+/57169



Signed-off-by: Manojkiran Eda <manojkiran.eda@gmail.com>
Change-Id: I190879c91f3e8ef8c4a637d7824f24d58e99b1ab