flambda-backend: To upstream: stop using -O3 for dynlink/

Author: mshinwell

otherlibs/dynlink/Makefile

@@ -33,9 +33,6 @@ OCAMLOPT=$(BEST_OCAMLOPT) -g -nostdlib -I $(ROOTDIR)/stdlib
 COMPFLAGS=-strict-sequence -principal -absname -w +a-4-9-40-41-42-44-45-48-66 \
 	  -warn-error A \
           -bin-annot -safe-string -strict-formats
-ifeq "$(FLAMBDA)" "true"
-OPTCOMPFLAGS += -O3
-endif
 
 LOCAL_SRC=dynlink_compilerlibs