patch 8.2.2929: accidentally enable tcl by default

Problem:    Accidentally enable tcl by default.
Solution:   Revert change to Makefile
diff --git a/src/Makefile b/src/Makefile
index 202daec..0efee51 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -466,7 +466,7 @@
 # TCL
 # Uncomment this when you want to include the Tcl interface.
 # First one is for static linking, second one for dynamic loading.
-CONF_OPT_TCL = --enable-tclinterp
+#CONF_OPT_TCL = --enable-tclinterp
 #CONF_OPT_TCL = --enable-tclinterp=dynamic
 #CONF_OPT_TCL = --enable-tclinterp --with-tclsh=tclsh8.4