[misc] Remove unused variable defaults

[ronnyroeller]

The default values of the initialized fields are overwritten in the following lines. This means that the code never relies on the variable defaults.
Removing the unused defaults makes the code easier to read.

[jsf-clabot]

All committers have signed the CLA.

[coveralls]

Coverage remained the same at 88.404% when pulling 04d3072 on Collaborne:develop into 24e55df on moment:develop.

[marwahaha]

Thanks!