Regression: Unit test failing due to recent PR merging using code changed in build tags PR

[sanyamsinghal]

…

Describe the changes in this pull request

Fixes the regression introduced in bbfc84c
fatalIfError was renamed to testutils.FatalIfError()in this commit, but recent commit was still using old name and git merge was unable to detect this conflict.

Describe if there are any user-facing changes

NA

How was this pull request tested?

Does your PR have changes that can cause upgrade issues?

Component	Breaking changes?
MetaDB	Yes/No
Name registry json	Yes/No
Data File Descriptor Json	Yes/No
Export Snapshot Status Json	Yes/No
Import Data State	Yes/No
Export Status Json	Yes/No
Data .sql files of tables	Yes/No
Export and import data queue	Yes/No
Schema Dump	Yes/No
AssessmentDB	Yes/No
Sizing DB	Yes/No
Migration Assessment Report Json	Yes/No
Callhome Json	Yes/No
YugabyteD Tables	Yes/No
TargetDB Metadata Tables	Yes/No