[build] Globally Exclude PMD.TooManyMethods (#2793)

This was not a useful check, as every time we hit it, we simply excluded it.

wpimath/src/main/java/edu/wpi/first/wpilibj/math/Discretization.java

@@ -14,7 +14,7 @@ import edu.wpi.first.wpiutil.math.Nat;
 import edu.wpi.first.wpiutil.math.Num;
 import edu.wpi.first.wpiutil.math.Pair;
 
-@SuppressWarnings({"PMD.TooManyMethods", "ParameterName", "MethodTypeParameterName"})
+@SuppressWarnings({"ParameterName", "MethodTypeParameterName"})
 public final class Discretization {
   private Discretization() {
     // Utility class

wpimath/src/main/java/edu/wpi/first/wpilibj/math/StateSpaceUtil.java

@@ -21,7 +21,7 @@ import edu.wpi.first.wpiutil.math.VecBuilder;
 import edu.wpi.first.wpiutil.math.numbers.N1;
 import edu.wpi.first.wpiutil.math.numbers.N3;
 
-@SuppressWarnings({"PMD.TooManyMethods", "ParameterName"})
+@SuppressWarnings("ParameterName")
 public final class StateSpaceUtil {
   private StateSpaceUtil() {
     // Utility class

wpimath/src/main/java/edu/wpi/first/wpilibj/system/LinearSystem.java

@@ -12,7 +12,7 @@ import edu.wpi.first.wpiutil.math.Matrix;
 import edu.wpi.first.wpiutil.math.Num;
 import edu.wpi.first.wpiutil.math.numbers.N1;
 
-@SuppressWarnings({"PMD.TooManyMethods", "ClassTypeParameterName"})
+@SuppressWarnings("ClassTypeParameterName")
 public class LinearSystem<States extends Num, Inputs extends Num,
         Outputs extends Num> {