chore: drop unused integration tests (#362)

Author: xdustinface

AGENTS.md

@@ -9,7 +9,6 @@
 - MSRV: 1.89. Build all: `cargo build --workspace --all-features`
 - Test all: `cargo test --workspace --all-features` or `./contrib/test.sh` (set `DO_COV=true`, `DO_LINT=true`, `DO_FMT=true` as needed)
 - Targeted tests: `cargo test -p dash-spv --all-features`
-- Integration RPC: `cd dash-spv && DASH_SPV_IP=<node-ip> cargo test --test integration_real_node_test -- --nocapture`
 - FFI iOS builds: `cd key-wallet-ffi && ./build-ios.sh`
 - Lint/format: `cargo clippy --workspace --all-targets -- -D warnings` and `cargo fmt --all`
 - Docs: `cargo doc --workspace` (add `--open` locally)

CLAUDE.md

@@ -101,13 +101,6 @@ DO_LINT=true ./contrib/test.sh
 DO_FMT=true ./contrib/test.sh
 ```
 
-### Integration Tests
-```bash
-# Run with real Dash node (requires DASH_SPV_IP environment variable)
-cd dash-spv
-cargo test --test integration_real_node_test -- --nocapture
-```
-
 ## Development Commands
 
 ### Linting and Formatting

dash-spv/CLAUDE.md

@@ -57,7 +57,6 @@ cargo test
 cargo test --test handshake_test
 cargo test --test header_sync_test
 cargo test --test storage_test
-cargo test --test integration_real_node_test
 
 # Run individual test functions
 cargo test --test handshake_test test_handshake_with_mainnet_peer
@@ -69,19 +68,6 @@ cargo test -- --nocapture
 cargo test --test handshake_test test_handshake_with_mainnet_peer -- --nocapture
 ```
 
-**Integration Tests with Real Node:**
-The integration tests in `tests/integration_real_node_test.rs` connect to a live Dash Core node at `127.0.0.1:9999`. These tests gracefully skip if no node is available.
-
-```bash
-# Run real node integration tests
-cargo test --test integration_real_node_test -- --nocapture
-
-# Test specific real node functionality
-cargo test --test integration_real_node_test test_real_header_sync_genesis_to_1000 -- --nocapture
-```
-
-See `run_integration_tests.md` for detailed setup instructions.
-
 ### Code Quality
 ```bash
 # Check formatting
@@ -201,7 +187,7 @@ Use domain-specific error types:
 **Common Debug Commands:**
 ```bash
 # Run with tracing output
-RUST_LOG=debug cargo test --test integration_real_node_test -- --nocapture
+RUST_LOG=debug cargo test --test test_handshake_with_mainnet_peer -- --nocapture
 
 # Run specific test with verbose output  
 cargo test --test handshake_test test_handshake_with_mainnet_peer -- --nocapture --test-threads=1