bug 1255485 - Remove NSDISTMODE=copy support from config.mk. r=nalexander

MozReview-Commit-ID: L5Pe4NexbJD

config/config.mk

@@ -321,7 +321,7 @@ else
 
 # This isn't laid out as conditional directives so that NSDISTMODE can be
 # target-specific.
-INSTALL         = $(if $(filter copy, $(NSDISTMODE)), $(NSINSTALL) -t, $(if $(filter absolute_symlink, $(NSDISTMODE)), $(NSINSTALL) -L $(PWD), $(NSINSTALL) -R))
+INSTALL         = $(if $(filter absolute_symlink, $(NSDISTMODE)), $(NSINSTALL) -L $(PWD), $(NSINSTALL) -R)
 
 endif # WINNT