Remove unused lazy_static dependency

Change-Id: I93eccf2ef08d20428b8e68a1d8b46a1e17758302
diff --git a/Cargo.toml b/Cargo.toml
index a67f8df..c12ea0a 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -42,6 +42,3 @@
 # Run the `boringssl/test_symbol_conflict.sh` test during `cargo test`. This is
 # disabled by default because the test takes a long time to run.
 run-symbol-conflict-test = []
-
-[dev-dependencies]
-lazy_static = "1.0.0"
diff --git a/src/lib.rs b/src/lib.rs
index 62583f4..986b80d 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -48,9 +48,6 @@
 // definitions
 #![deny(unsafe_code)]
 
-#[cfg(test)]
-extern crate lazy_static;
-
 #[macro_use]
 mod macros;