SonarLint : Unused local variables should be removed

If there are some variables that are usually used by the developers for debugging but later those variables are not used. Those variables should be removed since it is a dead code.It will improve the maintainability and other developers will not wonder where this local variable is used.

Example from sonar lint

Noncompliant Code Example

public int numberOfMinutes(int hours) {
  int seconds = 0;   // seconds is never used
  return hours * 60;
}

Compliant Solution

public int numberOfMinutes(int hours) {
  return hours * 60;
}