tools/ocaml: Drop the OCAMLOPTFLAG_G invocation

These days, `ocamlopt -h` asks you whether you meant --help instead, meaning
that the $(shell ) invocation here isn't going end up containing '-g'.

Make it unconditional, like it is in OCAMLCFLAGS already.

Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com>
Acked-by: Christian Lindig <christian.lindig@cloud.com>
Reviewed-by: Edwin Török <edwin.torok@cloud.com>

tools/ocaml/common.make

@@ -11,8 +11,7 @@ OCAMLFIND ?= ocamlfind
 
 CFLAGS += -fPIC -I$(shell ocamlc -where)
 
-OCAMLOPTFLAG_G := $(shell $(OCAMLOPT) -h 2>&1 | sed -n 's/^  *\(-g\) .*/\1/p')
-OCAMLOPTFLAGS = $(OCAMLOPTFLAG_G) -ccopt "$(LDFLAGS)" -dtypes $(OCAMLINCLUDE) -w F -warn-error F
+OCAMLOPTFLAGS = -g -ccopt "$(LDFLAGS)" -dtypes $(OCAMLINCLUDE) -w F -warn-error F
 OCAMLCFLAGS += -g $(OCAMLINCLUDE) -w F -warn-error F
 
 VERSION := 4.1