net/SocketAdddress: remove unnecessary operator!=()

The compiler must generate this implicitly from operator==().

src/net/AllocatedSocketAddress.hxx

@@ -67,12 +67,6 @@ public:
 		return (SocketAddress)*this == std::forward<T>(other);
 	}
 
-	template<typename T>
-	[[gnu::pure]]
-	bool operator!=(T &&other) const noexcept {
-		return !(*this == std::forward<T>(other));
-	}
-
 	[[gnu::const]]
 	static AllocatedSocketAddress Null() noexcept {
 		return AllocatedSocketAddress(nullptr, 0);

src/net/LocalSocketAddress.hxx

@@ -121,9 +121,4 @@ public:
 	bool operator==(SocketAddress other) const noexcept {
 		return static_cast<const SocketAddress>(*this) == other;
 	}
-
-	[[nodiscard]] [[gnu::pure]]
-	bool operator!=(SocketAddress other) const noexcept {
-		return !(*this == other);
-	}
 };

src/net/SocketAddress.hxx

@@ -169,8 +169,4 @@ public:
 
 	[[gnu::pure]]
 	bool operator==(const SocketAddress other) const noexcept;
-
-	bool operator!=(const SocketAddress other) const noexcept {
-		return !(*this == other);
-	}
 };

src/net/StaticSocketAddress.hxx

@@ -141,8 +141,4 @@ public:
 	bool operator==(SocketAddress other) const noexcept {
 		return (SocketAddress)*this == other;
 	}
-
-	bool operator!=(SocketAddress other) const noexcept {
-		return !(*this == other);
-	}
 };