Remove duplicate code from src/Makefile.am (#2944)

Backported 10228 twice - in #1879 and #2911

Author: UdjinM6

src/Makefile.am

@@ -641,13 +641,6 @@ $(top_srcdir)/$(subdir)/config/dash-config.h.in:  $(am__configure_deps)
 	$(AM_V_at)$(MAKE) -C $(top_srcdir) $(subdir)/config/dash-config.h.in
 
 
-config/dash-config.h: config/stamp-h1
-	@$(MAKE) -C $(top_builddir) $(subdir)/$(@)
-config/stamp-h1: $(top_srcdir)/$(subdir)/config/dash-config.h.in $(top_builddir)/config.status
-	$(AM_V_at)$(MAKE) -C $(top_builddir) $(subdir)/$(@)
-$(top_srcdir)/$(subdir)/config/dash-config.h.in:  $(am__configure_deps)
-	$(AM_V_at)$(MAKE) -C $(top_srcdir) $(subdir)/config/dash-config.h.in
-
 clean-local:
 	-$(MAKE) -C secp256k1 clean
 	-$(MAKE) -C univalue clean