Fix identical operands and undeclared variable issues found in code scanning

[jvigliotta]

Describe the sustaining activity

Address two code quality issues (not bugs):

• https://github.com/NASA-AMMOS/openmct-mcws/security/code-scanning/35
• https://github.com/NASA-AMMOS/openmct-mcws/security/code-scanning/19

Expected behavior

These should be corrected.

Testing Instructions

1. N/A

Additional context

[jvigliotta]

Fixed it #283