RemoveTracesFromGraph: Remove unused optional kill parameter

Nobody is using that and it is also unexpected for this function to be
able to kill the formerly displayed wave.

Author: t-b

Packages/MIES/MIES_MiesUtilities.ipf

@@ -5094,26 +5094,20 @@ End
 /// @brief Remove traces from a graph and optionally try to kill their waves
 ///
 /// @param graph                            graph
-/// @param kill [optional, default: false]  try to kill the wave after it has been removed
 /// @param trace [optional, default: all]   remove the given trace only
 /// @param wv [optional, default: ignored]  remove all traces which stem from the given wave
 /// @param dfr [optional, default: ignored] remove all traces which stem from one of the waves in dfr
 ///
 /// Only one of trace/wv/dfr may be supplied.
-Function RemoveTracesFromGraph(graph, [kill, trace, wv, dfr])
+Function RemoveTracesFromGraph(graph, [trace, wv, dfr])
 	string graph
-	variable kill
 	string trace
 	WAVE/Z wv
 	DFREF dfr
 
-	variable i, numEntries, tryKillingTheWave, numOptArgs, remove_all_traces, debugOnError
+	variable i, numEntries, numOptArgs, remove_all_traces, debugOnError
 	string traceList, refTrace
 
-	if(ParamIsDefault(kill))
-		kill = 0
-	endif
-
 	numOptArgs = ParamIsDefault(trace) + ParamIsDefault(wv) + ParamIsDefault(dfr)
 	ASSERT(numOptArgs == 3 || numOptArgs == 2, "Can only accept one of the trace/wv/dfr parameters")
 
@@ -5128,7 +5122,7 @@ Function RemoveTracesFromGraph(graph, [kill, trace, wv, dfr])
 	remove_all_traces = ParamIsDefault(trace) && ParamIsDefault(wv) && ParamIsDefault(dfr)
 
 	// remove without calling TraceNameList or TraceNameToWaveRef
-	if(!kill && remove_all_traces)
+	if(remove_all_traces)
 #if IgorVersion() >= 9.0
 		RemoveFromGraph/ALL/W=$graph
 		return NaN
@@ -5158,29 +5152,20 @@ Function RemoveTracesFromGraph(graph, [kill, trace, wv, dfr])
 
 		if(remove_all_traces)
 			RemoveFromGraph/W=$graph $refTrace
-			tryKillingTheWave = 1
 		elseif(!ParamIsDefault(trace))
 			if(!cmpstr(refTrace, trace))
 				RemoveFromGraph/W=$graph $refTrace
-				tryKillingTheWave = 1
 			endif
 		elseif(!ParamIsDefault(wv))
 			if(WaveRefsEqual(refWave, wv))
 				RemoveFromGraph/W=$graph $refTrace
-				tryKillingTheWave = 1
 			endif
 		elseif(!ParamIsDefault(dfr))
 			if(GetRowIndex(candidates, refWave=refWave) >= 0)
 				RemoveFromGraph/W=$graph $refTrace
-				tryKillingTheWave = 1
 			endif
 		endif
 
-		if(kill && tryKillingTheWave)
-			KillOrMoveToTrash(wv=refWave)
-		endif
-
-		tryKillingTheWave = 0
 	endfor
 
 	return NaN