WORKSPACE: Remove duplicated lines for Caffeine

Change-Id: I2fbd1fa21f8d79dd2fccb4656181d4820dd8d057

WORKSPACE

diff --git a/WORKSPACE b/WORKSPACE
index 4a7add7..6fa4973 100644
--- a/WORKSPACE
+++ b/WORKSPACE
@@ -266,31 +266,6 @@
     sha1 = "1dcf1de382a0bf95a3d8b0849546c88bac1292c9",
 )
 
-CAFFEINE_VERS = "2.8.0"
-
-maven_jar(
-    name = "caffeine",
-    artifact = "com.github.ben-manes.caffeine:caffeine:" + CAFFEINE_VERS,
-    sha1 = "6000774d7f8412ced005a704188ced78beeed2bb",
-)
-
-# TODO(davido): Rename guava.jar to caffeine-guava.jar on fetch to prevent potential
-# naming collision between caffeine guava adapater and guava library itself.
-# Remove this renaming procedure, once this upstream issue is fixed:
-# https://github.com/ben-manes/caffeine/issues/364.
-http_file(
-    name = "caffeine-guava-renamed",
-    downloaded_file_path = "caffeine-guava-" + CAFFEINE_VERS + ".jar",
-    sha256 = "3a66ee3ec70971dee0bae6e56bda7b8742bc4bedd7489161bfbbaaf7137d89e1",
-    urls = [
-        "https://repo1.maven.org/maven2/com/github/ben-manes/caffeine/guava/" +
-        CAFFEINE_VERS +
-        "/guava-" +
-        CAFFEINE_VERS +
-        ".jar",
-    ],
-)
-
 maven_jar(
     name = "jsch",
     artifact = "com.jcraft:jsch:0.1.54",