Really fix build.

Cargo.toml

@@ -77,6 +77,23 @@ async-std = { version = "1.6.2", features = ["attributes"] }
 env_logger = "0.8.1"
 tokio = { version = "1.0.1", features = ["io-util", "io-std", "macros", "rt", "rt-multi-thread"] }
 
+[dev-dependencies.libp2p]
+path = "."
+features = [
+    "dns-async-std",
+    "floodsub",
+    "gossipsub",
+    "kad",
+    "mdns",
+    "mplex",
+    "noise",
+    "ping",
+    "pnet",
+    "tcp-async-io",
+    "websocket",
+    "yamux",
+]
+
 [workspace]
 resolver = "2"
 members = [
@@ -106,34 +123,6 @@ members = [
     "transports/wasm-ext"
 ]
 
-[[example]]
-name = "chat"
-required-features = ["floodsub", "mdns"]
-
 [[example]]
 name = "chat-tokio"
 required-features = ["tcp-tokio", "mdns"]
-
-[[example]]
-name = "distributed-key-value-store"
-required-features = ["mdns", "websocket"]
-
-[[example]]
-name = "gossipsub-chat"
-required-features = ["gossipsub"]
-
-[[example]]
-name = "ipfs-kad"
-required-features = ["websocket"]
-
-[[example]]
-name = "ipfs-private"
-required-features = ["gossipsub", "noise", "ping", "pnet", "tcp-async-io", "yamux"]
-
-[[example]]
-name = "mdns-passive-discovery"
-required-features = ["mdns"]
-
-[[example]]
-name = "ping"
-required-features = ["websocket"]