remove duplicate source root; update testdata according to the appearance of decompiler in dependencies

.idea/libraries/java_decompiler_plugin.xml

@@ -6,7 +6,6 @@
     <JAVADOC />
     <SOURCES>
       <root url="jar://$PROJECT_DIR$/ideaSDK/sources/sources.jar!/" />
-      <root url="jar://$PROJECT_DIR$/ideaSDK/sources/sources.jar!/" />
     </SOURCES>
   </library>
 </component>

idea/testData/resolve/references/JavaParameter.kt

@@ -1,3 +1,3 @@
 val h = java.io.File(p<caret>0 = "")
 
-// REF: java.lang.String s
+// REF: String var1