diff --git a/protected/java/test/org/broadinstitute/sting/gatk/walkers/bqsr/BQSRIntegrationTest.java b/protected/java/test/org/broadinstitute/sting/gatk/walkers/bqsr/BQSRIntegrationTest.java
index 26ee78484..90d67d393 100644
--- a/protected/java/test/org/broadinstitute/sting/gatk/walkers/bqsr/BQSRIntegrationTest.java
+++ b/protected/java/test/org/broadinstitute/sting/gatk/walkers/bqsr/BQSRIntegrationTest.java
@@ -73,11 +73,6 @@ public class BQSRIntegrationTest extends WalkerTest {
                 params.getCommandLine(),
                 Arrays.asList(params.md5));
         executeTest("testBQSR-"+params.args, spec).getFirst();
-
-        WalkerTestSpec specNT2 = new WalkerTestSpec(
-                params.getCommandLine() + " -nt 2",
-                Arrays.asList(params.md5));
-        executeTest("testBQSR-nt2-"+params.args, specNT2).getFirst();
     }
 
     @Test
diff --git a/public/java/src/org/broadinstitute/sting/gatk/walkers/bqsr/BaseRecalibrator.java b/public/java/src/org/broadinstitute/sting/gatk/walkers/bqsr/BaseRecalibrator.java
index 2c7a12a36..245c8e3e8 100755
--- a/public/java/src/org/broadinstitute/sting/gatk/walkers/bqsr/BaseRecalibrator.java
+++ b/public/java/src/org/broadinstitute/sting/gatk/walkers/bqsr/BaseRecalibrator.java
@@ -109,7 +109,7 @@ import java.util.ArrayList;
 @ReadFilters({MappingQualityZeroFilter.class, MappingQualityUnavailableFilter.class}) // only look at covered loci, not every loci of the reference file
 @Requires({DataSource.READS, DataSource.REFERENCE}) // filter out all reads with zero or unavailable mapping quality
 @PartitionBy(PartitionType.LOCUS) // this walker requires both -I input.bam and -R reference.fasta
-public class BaseRecalibrator extends LocusWalker<Long, Long> implements TreeReducible<Long>, NanoSchedulable {
+public class BaseRecalibrator extends LocusWalker<Long, Long> {
 
     @ArgumentCollection
     private final RecalibrationArgumentCollection RAC = new RecalibrationArgumentCollection(); // all the command line arguments for BQSR and it's covariates
@@ -277,11 +277,6 @@ public class BaseRecalibrator extends LocusWalker<Long, Long> implements TreeRed
         return sum;
     }
 
-    public Long treeReduce(Long sum1, Long sum2) {
-        sum1 += sum2;
-        return sum1;
-    }
-
     @Override
     public void onTraversalDone(Long result) {
         logger.info("Calculating quantized quality scores...");