chore: remove deprecated method

[elharo]

Fixes #69

Also see https://engdoc.corp.google.com/eng/doc/devguide/java/testing/exceptions.md?cl=head

[codecov]

Codecov Report

Merging #70 into master will increase coverage by 0.43%.
The diff coverage is n/a.

@@             Coverage Diff              @@
##             master      #70      +/-   ##
============================================
+ Coverage     77.32%   77.76%   +0.43%     
- Complexity     1108     1143      +35     
============================================
  Files            73       73              
  Lines          5915     6210     +295     
  Branches        645      718      +73     
============================================
+ Hits           4574     4829     +255     
- Misses         1014     1033      +19     
- Partials        327      348      +21

Impacted Files	Coverage Δ	Complexity Δ
...ava/com/google/cloud/bigquery/TableDefinition.java	83.33% <0%> (-2.88%)	11% <0%> (+4%)
...main/java/com/google/cloud/bigquery/JobStatus.java	85.91% <0%> (-1.59%)	25% <0%> (+9%)
.../java/com/google/cloud/bigquery/JobStatistics.java	91.79% <0%> (+0.48%)	32% <0%> (+16%)	⬆️
...y/src/main/java/com/google/cloud/bigquery/Acl.java	71.12% <0%> (+1.03%)	19% <0%> (+6%)	⬆️

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