remove unneded patching of Makefile

(cherry picked from commit 2a2ba37)

Author: KristofferC

deps/blas.mk

@@ -93,8 +93,7 @@ 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 > $@
+	echo 1 > $@	
 
 $(BUILDDIR)/$(OPENBLAS_SRC_DIR)/build-compiled: $(BUILDDIR)/$(OPENBLAS_SRC_DIR)/build-configured
 	echo $(MAKE) -C $(dir $<) $(OPENBLAS_BUILD_OPTS) # echo first, so we only print the error message below in a failure case