diff --git a/libavcodec/fmtconvert.c b/libavcodec/fmtconvert.c
index fd56a63c77..00f55f8f1e 100644
--- a/libavcodec/fmtconvert.c
+++ b/libavcodec/fmtconvert.c
@@ -33,14 +33,6 @@ static void int32_to_float_fmul_scalar_c(float *dst, const int32_t *src,
         dst[i] = src[i] * mul;
 }
 
-static void int32_to_float_c(float *dst, const int32_t *src, intptr_t len)
-{
-    int i;
-
-    for (i = 0; i < len; i++)
-        dst[i] = (float)src[i];
-}
-
 static void int32_to_float_fmul_array8_c(FmtConvertContext *c, float *dst,
                                          const int32_t *src, const float *mul,
                                          int len)
@@ -52,7 +44,6 @@ static void int32_to_float_fmul_array8_c(FmtConvertContext *c, float *dst,
 
 av_cold void ff_fmt_convert_init(FmtConvertContext *c, AVCodecContext *avctx)
 {
-    c->int32_to_float             = int32_to_float_c;
     c->int32_to_float_fmul_scalar = int32_to_float_fmul_scalar_c;
     c->int32_to_float_fmul_array8 = int32_to_float_fmul_array8_c;
 
diff --git a/libavcodec/fmtconvert.h b/libavcodec/fmtconvert.h
index a1b17e4f04..b2df7a9629 100644
--- a/libavcodec/fmtconvert.h
+++ b/libavcodec/fmtconvert.h
@@ -37,16 +37,6 @@ typedef struct FmtConvertContext {
      */
     void (*int32_to_float_fmul_scalar)(float *dst, const int32_t *src,
                                        float mul, int len);
-    /**
-     * Convert an array of int32_t to float.
-     * @param dst destination array of float.
-     *            constraints: 32-byte aligned
-     * @param src source array of int32_t.
-     *            constraints: 32-byte aligned
-     * @param len number of elements to convert.
-     *            constraints: multiple of 8
-     */
-    void (*int32_to_float)(float *dst, const int32_t *src, intptr_t len);
 
     /**
      * Convert an array of int32_t to float and multiply by a float value from another array,