egl: drop _eglInitImage() return type

Function cannot fail and always returns true.

v2: Inline the one line function in the header

Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com>
diff --git a/src/egl/drivers/dri2/egl_dri2.c b/src/egl/drivers/dri2/egl_dri2.c
index c6af57f..a022a5d 100644
--- a/src/egl/drivers/dri2/egl_dri2.c
+++ b/src/egl/drivers/dri2/egl_dri2.c
@@ -1669,10 +1669,7 @@
       return NULL;
    }
 
-   if (!_eglInitImage(&dri2_img->base, disp)) {
-      free(dri2_img);
-      return NULL;
-   }
+   _eglInitImage(&dri2_img->base, disp);
 
    dri2_img->dri_image = dri_image;
 
@@ -1869,11 +1866,7 @@
       return EGL_NO_IMAGE_KHR;
    }
 
-   if (!_eglInitImage(&dri2_img->base, disp)) {
-      _eglError(EGL_BAD_ALLOC, "dri2_create_image_khr");
-      free(dri2_img);
-      return EGL_NO_IMAGE_KHR;
-   }
+   _eglInitImage(&dri2_img->base, disp);
 
    dri2_img->dri_image =
       dri2_dpy->image->createImageFromTexture(dri2_ctx->dri_context,
@@ -2345,10 +2338,7 @@
       goto cleanup_img;
    }
 
-   if (!_eglInitImage(&dri2_img->base, disp)) {
-      err = EGL_BAD_PARAMETER;
-      goto cleanup_img;
-   }
+   _eglInitImage(&dri2_img->base, disp);
 
    err = _eglParseImageAttribList(&attrs, disp, attr_list);
    if (err != EGL_SUCCESS)