Use more Tcl_CmdDeleteProc/Tcl_ObjCmdProc in stead of full function s… #3017

Job	Run time
gcc	7m 51s
msvc	5m 0s
gcc (--enable-config=mem)	8m 54s
msvc (OPTS=symbols)	5m 1s
gcc (--enable-config=all)	7m 57s
msvc (OPTS=symbols STATS=compdbg,memdbg)	7m 22s
gcc (--disable-shared)	8m 23s
msvc (OPTS=static)	5m 37s
	56m 5s

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