The patch below removes the 'sinh' primitive from the OCaml runtime
and standard library.

It is used on Inria's CI to make sure the bootstrap procedure works.

diff --git a/runtime/floats.c b/runtime/floats.c
index 7561bfba8..db246978c 100644
--- a/runtime/floats.c
+++ b/runtime/floats.c
@@ -858,11 +858,6 @@ CAMLprim value caml_sin_float(value f)
   return caml_copy_double(sin(Double_val(f)));
 }
 
-CAMLprim value caml_sinh_float(value f)
-{
-  return caml_copy_double(sinh(Double_val(f)));
-}
-
 CAMLprim value caml_cos_float(value f)
 {
   return caml_copy_double(cos(Double_val(f)));
diff --git a/stdlib/float.ml b/stdlib/float.ml
index ab5cd5c07..e09cbe215 100644
--- a/stdlib/float.ml
+++ b/stdlib/float.ml
@@ -85,8 +85,6 @@ external hypot : float -> float -> float
                = "caml_hypot_float" "caml_hypot" [@@unboxed] [@@noalloc]
 external cosh : float -> float = "caml_cosh_float" "cosh"
   [@@unboxed] [@@noalloc]
-external sinh : float -> float = "caml_sinh_float" "sinh"
-  [@@unboxed] [@@noalloc]
 external tanh : float -> float = "caml_tanh_float" "tanh"
   [@@unboxed] [@@noalloc]
 external acosh : float -> float = "caml_acosh_float" "caml_acosh"
diff --git a/stdlib/float.mli b/stdlib/float.mli
index ba84d9b0e..8132f93f7 100644
--- a/stdlib/float.mli
+++ b/stdlib/float.mli
@@ -285,10 +285,6 @@ external cosh : float -> float = "caml_cosh_float" "cosh"
 [@@unboxed] [@@noalloc]
 (** Hyperbolic cosine.  Argument is in radians. *)
 
-external sinh : float -> float = "caml_sinh_float" "sinh"
-[@@unboxed] [@@noalloc]
-(** Hyperbolic sine.  Argument is in radians. *)
-
 external tanh : float -> float = "caml_tanh_float" "tanh"
 [@@unboxed] [@@noalloc]
 (** Hyperbolic tangent.  Argument is in radians. *)
diff --git a/stdlib/stdlib.ml b/stdlib/stdlib.ml
index aac8fcc17..663ce44f2 100644
--- a/stdlib/stdlib.ml
+++ b/stdlib/stdlib.ml
@@ -146,8 +146,6 @@ external log10 : float -> float = "caml_log10_float" "log10"
 external log1p : float -> float = "caml_log1p_float" "caml_log1p"
   [@@unboxed] [@@noalloc]
 external sin : float -> float = "caml_sin_float" "sin" [@@unboxed] [@@noalloc]
-external sinh : float -> float = "caml_sinh_float" "sinh"
-  [@@unboxed] [@@noalloc]
 external asinh : float -> float = "caml_asinh_float" "caml_asinh"
   [@@unboxed] [@@noalloc]
 external sqrt : float -> float = "caml_sqrt_float" "sqrt"
diff --git a/stdlib/stdlib.mli b/stdlib/stdlib.mli
index e2e898266..2e18f16d3 100644
--- a/stdlib/stdlib.mli
+++ b/stdlib/stdlib.mli
@@ -556,10 +556,6 @@ external cosh : float -> float = "caml_cosh_float" "cosh"
   [@@unboxed] [@@noalloc]
 (** Hyperbolic cosine.  Argument is in radians. *)
 
-external sinh : float -> float = "caml_sinh_float" "sinh"
-  [@@unboxed] [@@noalloc]
-(** Hyperbolic sine.  Argument is in radians. *)
-
 external tanh : float -> float = "caml_tanh_float" "tanh"
   [@@unboxed] [@@noalloc]
 (** Hyperbolic tangent.  Argument is in radians. *)