Blob, ImageData & ShowLabels no longer implement Default

crates/store/re_types/definitions/rerun/components/blob.fbs

@@ -9,7 +9,7 @@ table Blob (
   "attr.arrow.transparent",
   "attr.python.aliases": "bytes, npt.NDArray[np.uint8]",
   "attr.python.array_aliases": "bytes, npt.NDArray[np.uint8]",
-  "attr.rust.derive": "Default, PartialEq, Eq",
+  "attr.rust.derive": "PartialEq, Eq",
   "attr.rust.repr": "transparent"
 ) {
   data: rerun.datatypes.Blob (order: 100);

crates/store/re_types/definitions/rerun/components/image_buffer.fbs

@@ -9,7 +9,7 @@ table ImageBuffer (
   "attr.arrow.transparent",
   "attr.python.aliases": "bytes, npt.NDArray[np.uint8]",
   "attr.python.array_aliases": "bytes, npt.NDArray[np.uint8]",
-  "attr.rust.derive": "Default, PartialEq, Eq",
+  "attr.rust.derive": "PartialEq, Eq",
   "attr.rust.repr": "transparent"
 ) {
   buffer: rerun.datatypes.Blob (order: 100);

crates/store/re_types/src/components/show_labels_ext.rs

@@ -1,14 +1,5 @@
 use super::ShowLabels;
 
-impl Default for ShowLabels {
-    #[inline]
-    fn default() -> Self {
-        // We don't actually use this default -- visualizers choose a fallback value --
-        // but it is necessary to satisfy `re_viewer::reflection::generate_component_reflection()`.
-        Self(true.into())
-    }
-}
-
 impl From<ShowLabels> for bool {
     #[inline]
     fn from(value: ShowLabels) -> Self {

crates/store/re_types/src/datatypes/blob_ext.rs

@@ -20,13 +20,6 @@ impl From<Vec<u8>> for Blob {
     }
 }
 
-impl Default for Blob {
-    #[inline]
-    fn default() -> Self {
-        Self(Vec::new().into())
-    }
-}
-
 impl std::ops::Deref for Blob {
     type Target = re_types_core::ArrowBuffer<u8>;