Revert "feat(engine): per-theme nearest-sampling opt-in for pixel-art themes"

This reverts commit 17e3112502.

solitaire_engine/src/theme/mod.rs

@@ -164,18 +164,6 @@ pub struct ThemeMeta {
     /// the artwork's intended proportions when the player resizes the
     /// window. Standard playing cards are 2:3.
     pub card_aspect: (u32, u32),
-    /// Whether this theme's art should render with nearest-neighbor
-    /// (point) sampling instead of Bevy's default bilinear filtering.
-    ///
-    /// Set `true` for pixel-art themes (each face is a small grid of
-    /// hand-placed pixels) so non-integer scales preserve crisp edges.
-    /// Leave `false` for SVG-rasterised or photographic art where
-    /// bilinear smooths downscale aliasing.
-    ///
-    /// `#[serde(default)]` keeps older manifests (which pre-date this
-    /// field) loading cleanly with the smooth-sampling default.
-    #[serde(default)]
-    pub pixel_art: bool,
 }
 
 /// Errors surfaced by [`ThemeMeta::validate`].
@@ -283,7 +271,6 @@ mod tests {
             author: "Solitaire Quest".into(),
             version: "1.0.0".into(),
             card_aspect: (2, 3),
-            pixel_art: false,
         };
         assert_eq!(meta.validate(), Ok(()));
     }
@@ -296,7 +283,6 @@ mod tests {
             author: "x".into(),
             version: "x".into(),
             card_aspect: (2, 3),
-            pixel_art: false,
         };
         assert_eq!(meta.validate(), Err(ThemeMetaError::EmptyId));
     }
@@ -309,7 +295,6 @@ mod tests {
             author: "x".into(),
             version: "x".into(),
             card_aspect: (2, 3),
-            pixel_art: false,
         };
         assert!(matches!(
             meta.validate(),
@@ -325,7 +310,6 @@ mod tests {
             author: "x".into(),
             version: "x".into(),
             card_aspect: (0, 3),
-            pixel_art: false,
         };
         assert_eq!(meta.validate(), Err(ThemeMetaError::ZeroNumerator));
         meta.card_aspect = (2, 0);