refactor type mappers (#722)

Author: mkolodezny

src/main/java/com/uber/cadence/internal/compatibility/proto/TypeMapper.java

@@ -551,17 +551,6 @@ static ActivityLocalDispatchInfo activityLocalDispatchInfo(
         .build();
   }
 
-  static SupportedClientVersions supportedClientVersions(
-      com.uber.cadence.SupportedClientVersions t) {
-    if (t == null) {
-      return SupportedClientVersions.newBuilder().build();
-    }
-    return SupportedClientVersions.newBuilder()
-        .setGoSdk(t.getGoSdk())
-        .setJavaSdk(t.getJavaSdk())
-        .build();
-  }
-
   static Domain describeDomainResponseDomain(com.uber.cadence.DescribeDomainResponse t) {
     if (t == null) {
       return null;

src/main/java/com/uber/cadence/internal/compatibility/thrift/TypeMapper.java

@@ -265,17 +265,6 @@ static WorkflowQueryResult workflowQueryResult(com.uber.cadence.api.v1.WorkflowQ
     return res;
   }
 
-  static StickyExecutionAttributes stickyExecutionAttributes(
-      com.uber.cadence.api.v1.StickyExecutionAttributes t) {
-    if (t == null || t == com.uber.cadence.api.v1.StickyExecutionAttributes.getDefaultInstance()) {
-      return null;
-    }
-    StickyExecutionAttributes res = new StickyExecutionAttributes();
-    res.setWorkerTaskList(taskList(t.getWorkerTaskList()));
-    res.setScheduleToStartTimeoutSeconds(durationToSeconds(t.getScheduleToStartTimeout()));
-    return res;
-  }
-
   static WorkerVersionInfo workerVersionInfo(com.uber.cadence.api.v1.WorkerVersionInfo t) {
     if (t == null || t == com.uber.cadence.api.v1.WorkerVersionInfo.getDefaultInstance()) {
       return null;