remove unneded patching of Makefile

(cherry picked from commit 2a2ba37)

Author: KristofferC

deps/blas.mk

@@ -93,7 +93,6 @@ endif
 OPENBLAS_BUILD_OPTS += MAKE_NB_JOBS=0
 
 $(BUILDDIR)/$(OPENBLAS_SRC_DIR)/build-configured: $(BUILDDIR)/$(OPENBLAS_SRC_DIR)/source-extracted
-	perl -i -ple 's/^\s*(EXTRALIB\s*\+=\s*-lSystemStubs)\s*$$/# $$1/g' $(dir $<)/Makefile.system
 	echo 1 > $@
 
 $(BUILDDIR)/$(OPENBLAS_SRC_DIR)/build-compiled: $(BUILDDIR)/$(OPENBLAS_SRC_DIR)/build-configured