Revert "Refs #10438. Added checGroups to IAlgorithm."

This reverts commit 8e55e36c.

Code/Mantid/Framework/API/inc/MantidAPI/AlgorithmProxy.h

@@ -88,7 +88,6 @@ namespace Mantid
       AlgorithmID getAlgorithmID() const;
 
       void initialize();
-      bool checkGroups();
       std::map<std::string, std::string> validateInputs();
       bool execute();
       void executeAsChildAlg() { throw std::runtime_error("Not implemented."); }

Code/Mantid/Framework/API/inc/MantidAPI/IAlgorithm.h

@@ -100,8 +100,6 @@ public:
    */
   virtual void initialize() = 0;
 
-  virtual bool checkGroups() = 0;
-
   /// Method checking errors on ALL the inputs, before execution. For use mostly in dialogs.
   virtual std::map<std::string, std::string> validateInputs() = 0;
 

Code/Mantid/Framework/API/src/AlgorithmProxy.cpp

@@ -56,12 +56,6 @@ namespace Mantid
       return AlgorithmID(const_cast<AlgorithmProxy*>(this));
     }
 
-    bool AlgorithmProxy::checkGroups()
-    {
-      if (!m_alg) createConcreteAlg();
-      return m_alg->checkGroups();
-    }
-
     /** Perform whole-input validation */
     std::map<std::string, std::string> AlgorithmProxy::validateInputs()
     {