remove obsolete spatial polyakov observable file

Grid/qcd/observables/spatial_polyakov_loop.h

@@ -1,74 +0,0 @@
-/*************************************************************************************
-
-Grid physics library, www.github.com/paboyle/Grid
-
-Source file: ./lib/qcd/modules/polyakov_line.h
-
-Copyright (C) 2017
-
-Author: David Preti <david.preti@csic.es>
-
-This program is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2 of the License, or
-(at your option) any later version.
-
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License along
-with this program; if not, write to the Free Software Foundation, Inc.,
-51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
-
-See the full license in the file "LICENSE" in the top level distribution
-directory
-*************************************************************************************/
-/*  END LEGAL */
-
-#pragma once
-
-NAMESPACE_BEGIN(Grid);
-
-// this is only defined for a gauge theory
-template <class Impl>
-class SpatialPolyakovLogger : public HmcObservable<typename Impl::Field> {
- public:
-    // here forces the Impl to be of gauge fields
-    // if not the compiler will complain
-    INHERIT_GIMPL_TYPES(Impl);
-
-     // necessary for HmcObservable compatibility
-    typedef typename Impl::Field Field;
-
-    void TrajectoryComplete(int traj,
-                            Field &U,
-                            GridSerialRNG &sRNG,
-                            GridParallelRNG &pRNG) {
-
-    // Save current numerical output precision
-    int def_prec = std::cout.precision();
-
-    // Assume that the dimensions are D=3+1
-    int Ndim = 3;
-    ComplexD polyakov;
-   
-    // Iterate over the spatial directions and print the average spatial polyakov loop
-    // over them 
-    for (int idx=0; idx<Ndim; idx++) {
-        polyakov = WilsonLoops<Impl>::avgPolyakovLoop(U, idx);
-    
-        std::cout << GridLogMessage
-            << std::setprecision(std::numeric_limits<Real>::digits10 + 1)
-            << "Polyakov Loop in the " << idx << " spatial direction : [ " << traj << " ] "<< polyakov << std::endl;
-
-    }
-
-    // Return to original output precision
-    std::cout.precision(def_prec);
-
-  }
-};
-
-NAMESPACE_END(Grid);