Remove unnecessary usings

Author: paulirwin

src/Lucene.Net.TestFramework/Search/CheckHits.cs

@@ -1,5 +1,4 @@
 using Lucene.Net.Index;
-using Lucene.Net.TestFramework;
 using Lucene.Net.Util;
 using System;
 using System.Collections.Generic;

src/Lucene.Net.TestFramework/Search/QueryUtils.cs

@@ -3,11 +3,9 @@
 using Lucene.Net.Documents;
 using Lucene.Net.Index;
 using Lucene.Net.Store;
-using Lucene.Net.TestFramework;
 using Lucene.Net.Util;
 using System;
 using System.Collections.Generic;
-using System.IO;
 using System.Text;
 using Assert = Lucene.Net.TestFramework.Assert;
 using Directory = Lucene.Net.Store.Directory;

src/Lucene.Net.TestFramework/Search/SearchEquivalenceTestBase.cs

@@ -2,7 +2,6 @@
 using Lucene.Net.Documents;
 using Lucene.Net.Index;
 using Lucene.Net.Store;
-using Lucene.Net.TestFramework;
 using Lucene.Net.Util;
 using Lucene.Net.Util.Automaton;
 using RandomizedTesting.Generators;

src/Lucene.Net.TestFramework/Store/BaseDirectoryTestCase.cs

@@ -4,7 +4,6 @@
 using Lucene.Net.Attributes;
 using Lucene.Net.Index;
 using Lucene.Net.Support;
-using Lucene.Net.TestFramework;
 using Lucene.Net.Util;
 using RandomizedTesting.Generators;
 using System;

src/Lucene.Net.TestFramework/Support/ApiScanTestBase.cs

@@ -1,5 +1,4 @@
 using Lucene.Net.Support;
-using Lucene.Net.TestFramework;
 using System;
 using System.CodeDom.Compiler;
 using System.Collections.Generic;

src/Lucene.Net.TestFramework/Support/JavaCompatibility/LuceneTestCase.cs

@@ -1,5 +1,4 @@
 using Lucene.Net.Support;
-using Lucene.Net.TestFramework;
 using System;
 using System.Collections.Generic;
 using System.Diagnostics;

src/Lucene.Net.TestFramework/Util/BaseDocIdSetTestCase.cs

@@ -1,6 +1,5 @@
 using Lucene.Net.Diagnostics;
 using Lucene.Net.Search;
-using Lucene.Net.TestFramework;
 using RandomizedTesting.Generators;
 using System;
 using Assert = Lucene.Net.TestFramework.Assert;

src/Lucene.Net.TestFramework/Util/Fst/FSTTester.cs

@@ -4,15 +4,12 @@
 using Lucene.Net.Diagnostics;
 using Lucene.Net.Store;
 using Lucene.Net.Support;
-using Lucene.Net.TestFramework;
 using Lucene.Net.Util.Packed;
 using RandomizedTesting.Generators;
 using System;
 using System.Collections;
-using System.Collections.Concurrent;
 using System.Collections.Generic;
 using System.IO;
-using System.Text;
 using Assert = Lucene.Net.TestFramework.Assert;
 using Directory = Lucene.Net.Store.Directory;
 using JCG = J2N.Collections.Generic;

src/Lucene.Net.TestFramework/Util/LuceneTestCase.cs

@@ -10,7 +10,6 @@
 using Lucene.Net.Support;
 using Lucene.Net.Support.IO;
 using Lucene.Net.Support.Threading;
-using Lucene.Net.TestFramework;
 using Lucene.Net.Util.Automaton;
 using NUnit.Framework.Interfaces;
 using NUnit.Framework.Internal;

src/Lucene.Net.TestFramework/Util/TestUtil.cs

@@ -1,4 +1,3 @@
-using J2N;
 using J2N.IO;
 using J2N.Text;
 using Lucene.Net.Codecs;
@@ -8,7 +7,6 @@
 using Lucene.Net.Index;
 using Lucene.Net.Search;
 using Lucene.Net.Support.IO;
-using Lucene.Net.TestFramework;
 using RandomizedTesting.Generators;
 using System;
 using System.Collections.Generic;