move libevent into base

third_party/libevent/test/regress.rpc

Index: third_party/libevent/test/regress.rpc
diff --git a/third_party/libevent/test/regress.rpc b/third_party/libevent/test/regress.rpc
deleted file mode 100644
index 65ca95de4cfd9bb88b24ce57f2031e5d038aa8e0..0000000000000000000000000000000000000000
--- a/third_party/libevent/test/regress.rpc
+++ /dev/null
@@ -1,20 +0,0 @@
-/* tests data packing and unpacking */
-
-struct msg {
-	string from_name = 1;
-	string to_name = 2;
-	optional struct[kill] attack = 3;
-	array struct[run] run = 4;
-}
-
-struct kill {
-	string weapon = 0x10121;
-	string action = 2;
-	optional int how_often = 3;
-}
-
-struct run {
-	string how = 1;
-	optional bytes some_bytes = 2;
-	bytes fixed_bytes[24] = 3;
-}