Remove unnecessary warning suppressions

Change-Id: Ib3e8b0782538a6340d8928d776ddc93b0cb9843e
diff --git a/src/main/java/com/google/gwtorm/nosql/heap/FileDatabase.java b/src/main/java/com/google/gwtorm/nosql/heap/FileDatabase.java
index 49cef69..ea82f1d 100644
--- a/src/main/java/com/google/gwtorm/nosql/heap/FileDatabase.java
+++ b/src/main/java/com/google/gwtorm/nosql/heap/FileDatabase.java
@@ -301,7 +301,6 @@
     }
   }
 
-  @SuppressWarnings("unchecked")
   public static abstract class LoggingAccess extends TreeMapAccess {
     protected LoggingAccess(LoggingSchema s) {
       super(s);
diff --git a/src/main/java/com/google/gwtorm/protobuf/CodecGen.java b/src/main/java/com/google/gwtorm/protobuf/CodecGen.java
index d019c97..e0d3222 100644
--- a/src/main/java/com/google/gwtorm/protobuf/CodecGen.java
+++ b/src/main/java/com/google/gwtorm/protobuf/CodecGen.java
@@ -1244,7 +1244,6 @@
     final Type codecType;
     final Type pojoType;
 
-    @SuppressWarnings("unchecked")
     NestedCodec(String field, Class impl, Type pojoType) {
       this.field = field;
       this.codecType = Type.getType(impl);