tutorials: Removed 0.orig directories in favor of <field>.orig

The new automated <field>.orig reading has made 0.orig directories and
associated scripting redundant.

tutorials/multiphase/potentialFreeSurfaceFoam/oscillatingBox/0/U

@@ -26,48 +26,40 @@ boundaryField
         type            pressureInletOutletParSlipVelocity;
         value           uniform (0 0 0);
     }
-
     walls
     {
         type            noSlip;
     }
-
     floatingObject
     {
         type            fixedNormalInletOutletVelocity;
-
         fixTangentialInflow false;
-
         normalVelocity
         {
             type            uniformFixedValue;
-
-            uniformValue
+            uniformValue    scale;
+            uniformValueCoeffs
             {
-                type        scale;
-
-                value
+                scale           linearRamp;
+                scaleCoeffs
                 {
-                    type sine;
-
-                    frequency   1;
-                    amplitude   0.025;
-                    scale       (0 1 0);
-                    level       (0 0 0);
+                    start           0;
+                    duration        10;
                 }
-
-                scale
+                value           sine;
+                valueCoeffs
                 {
-                    type linearRamp;
-
-                    duration 10;
+                    t0              0;
+                    amplitude       constant 0.025;
+                    frequency       constant 1;
+                    scale           constant (0 1 0);
+                    level           constant (0 0 0);
                 }
             }
+            value           uniform (0 0 0);
         }
-
         value           uniform (0 0 0);
     }
-
     frontAndBack
     {
         type            empty;

tutorials/multiphase/potentialFreeSurfaceFoam/oscillatingBox/0/p_gh

@@ -33,6 +33,7 @@ boundaryField
     floatingObject
     {
         type            fixedFluxPressure;
+        gradient        uniform 0;
         value           uniform 0;
     }
     frontAndBack

tutorials/multiphase/potentialFreeSurfaceFoam/oscillatingBox/Allclean

@@ -1,10 +0,0 @@
-#!/bin/sh
-cd ${0%/*} || exit 1    # Run from this directory
-
-# Source tutorial run functions
-. $WM_PROJECT_DIR/bin/tools/CleanFunctions
-
-cleanCase
-
-rm -rf 0
-rm -rf poolHeight poolHeight_vs_time

tutorials/multiphase/potentialFreeSurfaceFoam/oscillatingBox/Allrun

@@ -10,7 +10,6 @@ application=`getApplication`
 runApplication blockMesh
 runApplication topoSet
 runApplication subsetMesh -overwrite c0 -patch floatingObject
-cp -r 0.orig 0 > /dev/null 2>&1
 
 runApplication $application