remove unsued imports

src/main/java/com/lyncode/xoai/dataprovider/data/internal/MetadataFormat.java

@@ -20,7 +20,6 @@
 import com.lyncode.xoai.dataprovider.filter.conditions.Condition;
 
 import javax.xml.transform.Templates;
-import javax.xml.transform.Transformer;
 
 /**
 

src/main/java/com/lyncode/xoai/dataprovider/format/MetadataFormatManager.java

@@ -27,7 +27,6 @@
 import org.apache.log4j.Logger;
 
 import javax.xml.transform.Templates;
-import javax.xml.transform.Transformer;
 import javax.xml.transform.TransformerConfigurationException;
 import java.io.IOException;
 import java.util.ArrayList;

src/main/java/com/lyncode/xoai/dataprovider/services/api/ResourceResolver.java

@@ -1,7 +1,6 @@
 package com.lyncode.xoai.dataprovider.services.api;
 
 import javax.xml.transform.Templates;
-import javax.xml.transform.Transformer;
 import javax.xml.transform.TransformerConfigurationException;
 import java.io.IOException;
 import java.io.InputStream;

src/main/java/com/lyncode/xoai/dataprovider/services/impl/FileResourceResolver.java

@@ -3,7 +3,6 @@
 import com.lyncode.xoai.dataprovider.services.api.ResourceResolver;
 
 import javax.xml.transform.Templates;
-import javax.xml.transform.Transformer;
 import javax.xml.transform.TransformerConfigurationException;
 import javax.xml.transform.TransformerFactory;
 import javax.xml.transform.stream.StreamSource;