Revert "[nrf fromlist] susbys/dfu/img_util: support ERASE PROGRESSIVELY for non-flash mem"

This reverts commit 30f066a.

Author: nvlsianpu

subsys/dfu/img_util/flash_img.c

@@ -56,27 +56,9 @@ int flash_img_buffered_write(struct flash_img_context *ctx, const uint8_t *data,
 #ifdef CONFIG_IMG_ERASE_PROGRESSIVELY
 	ssize_t status_offset = boot_get_trailer_status_offset(
 		ctx->flash_area->fa_size);
-
-#ifdef CONFIG_STREAM_FLASH_ERASE
-	const struct flash_parameters *fparams =
-		flash_get_parameters(flash_area_get_device(ctx->flash_area));
-
-	if ((flash_params_get_erase_cap(fparams) & FLASH_ERASE_C_EXPLICIT)) {
-		/* use pistine-page-erase procedure for a device which needs it */
-		rc = stream_flash_erase_page(&ctx->stream,
-					ctx->flash_area->fa_off +
-					status_offset);
-	} else
-#endif
-	{
-		if (status_offset > stream_flash_bytes_written(&ctx->stream)) {
-			rc = flash_area_flatten(ctx->flash_area, status_offset,
-						ctx->flash_area->fa_off - status_offset);
-		} else {
-			rc = 0;
-		}
-	}
-
+	rc = stream_flash_erase_page(&ctx->stream,
+				ctx->flash_area->fa_off +
+				status_offset);
 	if (rc) {
 		return rc;
 	}