Remove OPTS=tk8 option: It was meant to be able to compile extesions witk Tk 8.7, which will never fly ....

Author: jan.nijtmans

win/rules.vc

@@ -881,10 +881,6 @@ USE_THREAD_ALLOC= 0
 !message *** Build for Tcl8
 TCL_BUILD_FOR = 8
 !endif
-!if [nmakehlp -f $(OPTS) "tk8"]
-!message *** Build for Tk8
-TK_BUILD_FOR = 8
-!endif
 
 !if $(TCL_MAJOR_VERSION) == 8
 !if [nmakehlp -f $(OPTS) "time64bit"]
@@ -1454,10 +1450,7 @@ OPTDEFINES	= $(OPTDEFINES) /D_USE_64BIT_TIME_T=1
 !endif
 !endif
 !if "$(TCL_BUILD_FOR)" == "8"
-OPTDEFINES	= $(OPTDEFINES) /DTCL_MAJOR_VERSION=8
-!endif
-!if "$(TK_BUILD_FOR)" == "8"
-OPTDEFINES	= $(OPTDEFINES) /DTK_MAJOR_VERSION=8
+OPTDEFINES	= $(OPTDEFINES) /DTCL_MAJOR_VERSION=8 /DTK_MAJOR_VERSION=8
 !endif
 
 # Like the TEA system only set this non empty for non-Tk extensions