Dynamodb-enhanced [preview]: remove unnecessary type arguments

Author: cenedhryn

services-custom/dynamodb-enhanced/src/main/java/software/amazon/awssdk/extensions/dynamodb/mappingclient/operations/PutItem.java

@@ -58,7 +58,7 @@ public static <T> PutItem<T> create(T item) {
     }
 
     public static <T> Builder<T> builder(Class<? extends T> itemClass) {
-        return new Builder<T>();
+        return new Builder<>();
     }
 
     public Builder<T> toBuilder() {

services-custom/dynamodb-enhanced/src/main/java/software/amazon/awssdk/extensions/dynamodb/mappingclient/operations/UpdateItem.java

@@ -72,7 +72,7 @@ public static <T> UpdateItem<T> create(T item) {
     }
 
     public static <T> Builder<T> builder(Class<? extends T> itemClass) {
-        return new Builder<T>();
+        return new Builder<>();
     }
 
     public Builder<T> toBuilder() {

services-custom/dynamodb-enhanced/src/main/java/software/amazon/awssdk/extensions/dynamodb/mappingclient/staticmapper/StaticTableSchema.java

@@ -61,7 +61,7 @@ private StaticTableSchema(List<Attribute<T>> attributeMappers,
     }
 
     public static <T> Builder<T> builder(Class<? extends T> itemClass) {
-        return new Builder<T>();
+        return new Builder<>();
     }
 
     public static final class Builder<T> {