Remove other functionality not needed in Rust

.github/workflows/ci.yaml

@@ -63,7 +63,7 @@ jobs:
           # MSRV
           - os: ubuntu-latest
             binary_target: x86_64-unknown-linux-gnu
-            toolchain: 1.62.1
+            toolchain: 1.85.0
     steps:
       - uses: actions/checkout@v5
         with:
@@ -96,11 +96,16 @@ jobs:
         run: |
           rustup -V
           rustup set profile minimal
-          rustup toolchain install --force-non-host ${{ matrix.toolchain }}-${{ matrix.binary_target }}
+          rustup default ${{ matrix.toolchain }}
+          rustup target add ${{ matrix.binary_target }}
           rustup show
 
       - name: Build
+        env:
+          CARGO_BUILD_TARGET: ${{ matrix.binary_target }}
         run: just build
 
       - name: Test
+        env:
+          CARGO_BUILD_TARGET: ${{ matrix.binary_target }}
         run: just test

swiftnav/Cargo.toml

@@ -7,12 +7,11 @@ description = "GNSS positioning and related utilities"
 readme = "README.md"
 repository = "https://github.com/swift-nav/swiftnav-rs"
 license = "LGPL-3.0"
-rust-version = "1.62.1"
+rust-version = "1.85.0"
 
 [dependencies]
 rustversion = "1.0"
 chrono = { version = "0.4", optional = true }
-swiftnav-sys = { version = "^0.10.0", path = "../swiftnav-sys/" }
 strum = { version = "0.27", features = ["derive"] }
 nalgebra = "0.33"
 thiserror = "2.0"

swiftnav/src/coords/ecef.rs

@@ -19,18 +19,6 @@ impl ECEF {
         Self(Vector3::new(x, y, z))
     }
 
-    /// Get a reference to the inner array storing the data
-    #[must_use]
-    pub(crate) fn as_array(&self) -> &[f64; 3] {
-        &self.0.data.0[0]
-    }
-
-    /// Get a mutable reference to the inner array storing the data
-    #[must_use]
-    pub(crate) fn as_array_mut(&mut self) -> &mut [f64; 3] {
-        &mut self.0.data.0[0]
-    }
-
     /// Get a reference to the inner [`Vector3<f64>`]
     #[must_use]
     pub(crate) fn as_vector(&self) -> &Vector3<f64> {