ORC-1492: Fix checkstyle violations for tests in mapreduce/tools/bench modules

[dongjoon-hyun]

What changes were proposed in this pull request?

This PR aims to fix checkstyle in mapreduce/tools/bench modules modules and removes the following.

orc/java/checkstyle-suppressions.xml

Lines 46 to 52 in e4b8338

	<!-- Remove the following rule when the test code clean up is completed. -->
	<suppress checks="Indentation" files="src/test/*"/>
	<suppress checks="RedundantModifier" files="src/test/*"/>
	<suppress checks="ModifierOrder" files="src/test/*"/>
	<suppress checks="UpperEll" files="src/test/*"/>
	<suppress checks="NeedBraces" files="src/test/*"/>
	<suppress checks="RegexpSingleline" files="src/test/*"/>

Please note that we suppress Indentation rule on the following three files additionally.

<suppress checks="Indentation" files="src/test/org/apache/orc/mapred/TestOrcFileEvolution.java"/>
<suppress checks="Indentation" files="src/test/org/apache/orc/tools/json/TestJsonSchemaFinder.java"/>
<suppress checks="Indentation" files="src/test/org/apache/orc/tools/convert/TestJsonReader.java"/>

Why are the changes needed?

To apply Checkstyle on test codes.

How was this patch tested?

Pass the Cis. Since we removed the global suppression rules on test code, CI should verify the result.

[dongjoon-hyun]

To reviewers,

• I made this PR, ORC-1492, as a subtask of the umbrella JIRA, ORC-1485.
• After merging this PR, the subtask JIRA (ORC-1492) is going to be assigned to me and the umbrella JIRA (ORC-1485) is going to be assigned to @mystic-lama as a recognition of initiating and leading this activity.

[dongjoon-hyun]

Merged to main for Apache ORC 2.0.0.