[Pick 2.0](index writer) fix dead lock when closeInternal catches CLu…

…ceneError (#207) (#212)

This pull request addresses an issue within the closeInternal method. 
When Thread A invokes closeInternal and encounters a CLucene error, the method exits without setting the closing flag back to false. 
As a result, if another Thread B subsequently calls closeInternal and enters the waitForClose method, it becomes trapped in an infinite loop.

src/core/CLucene/index/IndexWriter.cpp

@@ -596,8 +596,6 @@ void IndexWriter::closeInternal(bool waitForMerges) {
     } catch (std::bad_alloc &) {
         hitOOM = true;
         _CLTHROWA(CL_ERR_OutOfMemory, "Out of memory");
-    } catch (CLuceneError &e) {
-        throw e;
     }
     _CLFINALLY(
             {