Refactored some if-else statements.

[martinnm]

Refactored the last if-else statements of the method addFieldValueToColum().

• An if-else condition doesn't include code inside, it was deleted.
• An else statement included inside more else-if statements, it was refactored to be outside that structure.

[mention-bot]

@martinnm, thanks for your PR! By analyzing the history of the files in this pull request, we identified @benohalloran, @Vookash and @JonatanSalas to be potential reviewers.

[coveralls]

Coverage decreased (-0.02%) to 74.806% when pulling 19bdbf7 on martinnm:master into f7f6b05 on satyan:master.