Clean up imports

And fix a couple of warnings.

Author: ctrueden

imagej/imagej-ops2/src/main/java/net/imagej/ops2/coloc/icq/LiICQ.java

@@ -38,7 +38,6 @@
 
 import org.scijava.function.Computers;
 import org.scijava.function.Functions;
-import org.scijava.ops.spi.Op;
 import org.scijava.ops.spi.OpDependency;
 
 /**

imagej/imagej-ops2/src/main/java/net/imagej/ops2/coloc/kendallTau/KendallTauBRank.java

@@ -38,8 +38,6 @@
 import net.imglib2.util.IterablePair;
 import net.imglib2.util.Pair;
 
-import org.scijava.ops.spi.Op;
-
 /**
  * This algorithm calculates Kendall's Tau-b rank correlation coefficient
  * <p>

imagej/imagej-ops2/src/main/java/net/imagej/ops2/coloc/maxTKendallTau/MTKT.java

@@ -49,7 +49,6 @@
 
 import org.scijava.function.Computers;
 import org.scijava.function.Functions;
-import org.scijava.ops.spi.Op;
 import org.scijava.ops.spi.OpDependency;
 import org.scijava.util.IntArray;
 

imagej/imagej-ops2/src/main/java/net/imagej/ops2/coloc/pValue/DefaultPValue.java

@@ -48,7 +48,6 @@
 import net.imglib2.view.Views;
 
 import org.scijava.function.Computers;
-import org.scijava.ops.spi.Op;
 import org.scijava.ops.spi.OpDependency;
 
 /**

imagej/imagej-ops2/src/main/java/net/imagej/ops2/coloc/pearsons/DefaultPearsons.java

@@ -35,8 +35,6 @@
 import net.imglib2.util.IterablePair;
 import net.imglib2.util.Pair;
 
-import org.scijava.ops.spi.Op;
-
 /**
  * A class that represents the mean calculation of the two source images in the
  * data container. It implements the FAST calculation for Pearson's Correlation.

imagej/imagej-ops2/src/main/java/net/imagej/ops2/convert/ConvertTypes.java

@@ -52,8 +52,6 @@
 import net.imglib2.type.numeric.real.FloatType;
 
 import org.scijava.function.Computers;
-import org.scijava.ops.spi.OpCollection;
-import org.scijava.ops.spi.OpField;
 
 /**
  * Converters for converting between Complex types

imagej/imagej-ops2/src/main/java/net/imagej/ops2/convert/Converters.java

@@ -6,8 +6,6 @@
 import net.imglib2.type.Type;
 
 import org.scijava.function.Functions;
-import org.scijava.ops.spi.OpCollection;
-import org.scijava.ops.spi.OpField;
 
 public class Converters<I, O extends Type<O>> {
 

imagej/imagej-ops2/src/main/java/net/imagej/ops2/convert/clip/ClipRealTypes.java

@@ -32,7 +32,6 @@
 import net.imglib2.type.numeric.RealType;
 
 import org.scijava.function.Computers;
-import org.scijava.ops.spi.Op;
 
 /**
  * Copies the value of one {@link RealType} to another, and clips values which

imagej/imagej-ops2/src/main/java/net/imagej/ops2/convert/copy/CopyRealTypes.java

@@ -32,7 +32,6 @@
 import net.imglib2.type.numeric.RealType;
 
 import org.scijava.function.Computers;
-import org.scijava.ops.spi.Op;
 
 /**
  * Copies the value of one {@link RealType} into another using {@code double}

imagej/imagej-ops2/src/main/java/net/imagej/ops2/copy/CopyArrayImg.java

@@ -38,7 +38,6 @@
 import net.imglib2.util.Intervals;
 
 import org.scijava.function.Computers;
-import org.scijava.ops.spi.Op;
 import org.scijava.ops.spi.OpDependency;
 
 /**