Clang format & delete added empty line

Refs #22383

Framework/Algorithms/src/RunCombinationHelpers/RunCombinationHelper.cpp

@@ -21,7 +21,8 @@ using namespace Kernel;
 * @param inputs : input workspaces vector [including] group workspaces (all must
 * be on ADS)
 * @return : the flat vector of the input workspaces
-* @throw : std::runtime_error if the input workspaces are neither groups nor MatrixWorkspaces
+* @throw : std::runtime_error if the input workspaces are neither groups nor
+* MatrixWorkspaces
 */
 std::vector<std::string>
 RunCombinationHelper::unWrapGroups(const std::vector<std::string> &inputs) {

Framework/Algorithms/test/RunCombinationHelperTest.h

@@ -27,7 +27,6 @@ using namespace Mantid::HistogramData;
 using namespace Mantid::Kernel;
 using namespace WorkspaceCreationHelper;
 
-
 class RunCombinationHelperTest : public CxxTest::TestSuite {
 public:
   // This pair of boilerplate methods prevent the suite being created statically