More RS exceptions cleanup.
Remove some dead code.

Change-Id: If97e3fdfe6de7bb28f22e1c5ee748c81cea3db93
diff --git a/graphics/java/android/renderscript/BaseObj.java b/graphics/java/android/renderscript/BaseObj.java
index 715e3fb..69907d9 100644
--- a/graphics/java/android/renderscript/BaseObj.java
+++ b/graphics/java/android/renderscript/BaseObj.java
@@ -33,7 +33,7 @@
 
     public int getID() {
         if (mDestroyed) {
-            throw new IllegalStateException("using a destroyed object.");
+            throw new RSInvalidStateException("using a destroyed object.");
         }
         return mID;
     }
@@ -43,13 +43,12 @@
     String mName;
     RenderScript mRS;
 
-    public void setName(String s) throws IllegalStateException, IllegalArgumentException
-    {
+    public void setName(String s) {
         if(s.length() < 1) {
-            throw new IllegalArgumentException("setName does not accept a zero length string.");
+            throw new RSIllegalArgumentException("setName does not accept a zero length string.");
         }
         if(mName != null) {
-            throw new IllegalArgumentException("setName object already has a name.");
+            throw new RSIllegalArgumentException("setName object already has a name.");
         }
 
         try {
@@ -61,8 +60,7 @@
         }
     }
 
-    protected void finalize() throws Throwable
-    {
+    protected void finalize() throws Throwable {
         if (!mDestroyed) {
             if(mID != 0 && mRS.isAlive()) {
                 mRS.nObjDestroy(mID);
@@ -78,7 +76,7 @@
 
     public void destroy() {
         if(mDestroyed) {
-            throw new IllegalStateException("Object already destroyed.");
+            throw new RSInvalidStateException("Object already destroyed.");
         }
         mDestroyed = true;
         mRS.nObjDestroy(mID);