chore: delete obsolete matrix-rust-sdk.patch

matrix-rust-sdk now uses uniffi 0.31.0 which works out-of-the-box with
ubrn

Author: WeissDev

matrix-rust-sdk.patch

@@ -44,7 +44,7 @@
     "ubrn:ios:build": "CARGO_FEATURE_NO_NEON=1 ubrn build ios --config ubrn.yaml --native-bindings --and-generate",
     "ubrn:ios:build:release": "yarn ubrn:ios:build --release",
     "ubrn:ios:post-process": "del-cli swift && mv ios/swift swift && (cd example/ios && pod install) && rm -rf src/index.web.ts",
-    "ubrn:checkout": "( test -d rust_modules/matrix-rust-sdk && git -C rust_modules/matrix-rust-sdk reset --hard HEAD ); ubrn checkout --config ubrn.yaml && ( cd rust_modules/matrix-rust-sdk && git apply ../../matrix-rust-sdk.patch )",
+    "ubrn:checkout": "( test -d rust_modules/matrix-rust-sdk && git -C rust_modules/matrix-rust-sdk reset --hard HEAD ); ubrn checkout --config ubrn.yaml",
     "ubrn:clean": "del-cli -v cpp android/src/main/java ios \"src/Native*\" src/generated \"src/index.ts*\"",
     "ubrn:clean:android": "del-cli -v android/src/main/java \"src/Native*\" src/generated \"src/index.ts*\"",
     "ubrn:clean:ios": "del-cli -v ios swift \"src/Native*\" src/generated \"src/index.ts*\"",