STYLE: remove unnecessary stdout, stderr /dev/null redirects

- no stderr redirect needed:
    * 'command -v'

- no stdout/stderr redirect needed:
    * 'rm -f'

STYLE: consistent spacing after redirects

tutorials/lagrangian/MPPICFoam/cyclone/Allclean

@@ -5,6 +5,6 @@ cd ${0%/*} || exit 1                                # Run from this directory
 
 cleanCase
 
-# rm -f constant/triSurface/cyclone.stl.gz > /dev/null 2>&1
+# rm -f constant/triSurface/cyclone.stl*
 
 #------------------------------------------------------------------------------

tutorials/lagrangian/icoUncoupledKinematicParcelFoam/hopper/Allrun

@@ -10,7 +10,7 @@ cd ${0%/*} || exit 1                                # Run from this directory
     runApplication decomposePar
     runParallel $(getApplication)
     runApplication reconstructPar -latestTime
-    rm log.reconstructPar
+    rm -f log.reconstructPar
     runApplication reconstructPar -lagrangianFields \
         '(collisionRecordsPairAccessed collisionRecordsPairData \
           collisionRecordsPairOrigIdOfOther \

tutorials/lagrangian/reactingParcelFoam/hotBoxes/patchifyObstacles

@@ -25,7 +25,7 @@ nz=2
 
 
 tmpSetSet='patchify.setSet'
-rm -f patchify.setSet >/dev/null 2>&1
+rm -f patchify.setSet
 
 
 initialiseFaceSet()

tutorials/lagrangian/reactingParcelFoam/verticalChannel/Allrun

@@ -11,7 +11,7 @@ restore0Dir
 # initialise with potentialFoam solution
 runApplication potentialFoam
 
-\rm -f 0/phi
+rm -f 0/phi
 
 # run the solver
 runApplication $(getApplication)

tutorials/lagrangian/reactingParcelFoam/verticalChannelLTS/Allrun

@@ -11,7 +11,7 @@ restore0Dir
 # initialise with potentialFoam solution
 runApplication potentialFoam
 
-\rm -f 0/phi
+rm -f 0/phi
 
 # run the solver
 runApplication $(getApplication)

tutorials/lagrangian/simpleReactingParcelFoam/verticalChannel/Allrun

@@ -10,7 +10,7 @@ runApplication blockMesh
 runApplication potentialFoam
 
 # Remove incompatible (volumetric) flux field
-\rm -f 0/phi 2>/dev/null
+rm -f 0/phi
 
 runApplication $(getApplication)
 

tutorials/lagrangian/simpleReactingParcelFoam/verticalChannel/Allrun-parallel

@@ -10,7 +10,7 @@ runApplication blockMesh
 runApplication potentialFoam
 
 # Remove incompatible (volumetric) flux field
-\rm -f 0/phi 2>/dev/null
+rm -f 0/phi
 
 runApplication decomposePar