ClangCodeModel: Remove unneeded code

This was liblclang-specific.

Change-Id: I3fe8a8d2d49b1c7b92a54a90864e4ead7152e4ae
Reviewed-by: Cristian Adam <cristian.adam@qt.io>

src/plugins/clangcodemodel/test/clangdtests.cpp

@@ -3,7 +3,6 @@
 
 #include "clangdtests.h"
 
-#include "clangbatchfileprocessor.h"
 #include "../clangdclient.h"
 #include "../clangmodelmanagersupport.h"
 
@@ -69,6 +68,27 @@ static QString qrcPath(const QString &relativeFilePath)
     return ":/unittests/ClangCodeModel/" + relativeFilePath;
 }
 
+static Q_LOGGING_CATEGORY(debug, "qtc.clangcodemodel.batch", QtWarningMsg);
+
+static int timeOutFromEnvironmentVariable()
+{
+    bool isConversionOk = false;
+    const int intervalAsInt = Utils::qtcEnvironmentVariableIntValue("QTC_CLANG_BATCH_TIMEOUT",
+                                                                    &isConversionOk);
+    if (!isConversionOk) {
+        qCDebug(debug, "Environment variable QTC_CLANG_BATCH_TIMEOUT is not set, assuming 30000.");
+        return 30000;
+    }
+
+    return intervalAsInt;
+}
+
+int timeOutInMs()
+{
+    static int timeOut = timeOutFromEnvironmentVariable();
+    return timeOut;
+}
+
 ClangdTest::~ClangdTest()
 {
     EditorManager::closeAllEditors(false);