Updated as per review comments.

Author: nikhilbhoski

src/main/java/com/mathworks/ci/MatlabCommandStepExecution.java

@@ -15,7 +15,6 @@ public class MatlabCommandStepExecution extends SynchronousNonBlockingStepExecut
     private static final long serialVersionUID = 1957239693658914450L;
 
     private String command;
-    private EnvVars env;
 
 
     public MatlabCommandStepExecution(StepContext context, String command) {
@@ -26,10 +25,6 @@ public MatlabCommandStepExecution(StepContext context, String command) {
     private String getCommand() {
         return this.command;
     }
-    
-    private void setEnv(EnvVars env) {
-        this.env = env;
-    }
 
     @Override
     public Void run() throws Exception {

src/main/java/com/mathworks/ci/RunMatlabCommandBuilder.java

@@ -28,7 +28,6 @@
 
 public class RunMatlabCommandBuilder extends Builder implements SimpleBuildStep, MatlabBuild {
     private int buildResult;
-    private EnvVars env;
     private String matlabCommand;
 
     @DataBoundConstructor
@@ -48,19 +47,6 @@ public void setMatlabCommand(String matlabCommand) {
     public String getMatlabCommand() {
         return this.matlabCommand;
     }
-
-    private String getCommand() {
-        return this.env == null ? getMatlabCommand() : this.env.expand(getMatlabCommand());
-    }
-
-    private void setEnv(EnvVars env) {
-        this.env = env;
-    }
-
-    private EnvVars getEnv() {
-        return this.env;
-    }
-
 
     @Extension
     public static class RunMatlabCommandDescriptor extends BuildStepDescriptor<Builder> {