Revert "Rename libevent-host to libevent"

This reverts commit ef31fc6477e1424f507095d1478f21445d569a21.
It's now using unique_host_soname to use a different installed name,
but keeping the libevent module name.

Change-Id: I1cb6e8e670636089993054236b089da059629da1
diff --git a/core/Makefile b/core/Makefile
index 2b006fb..79faae1 100644
--- a/core/Makefile
+++ b/core/Makefile
@@ -1615,7 +1615,7 @@
   $(HOST_LIBRARY_PATH)/libbrillo-http$(HOST_SHLIB_SUFFIX) \
   $(HOST_LIBRARY_PATH)/libchrome$(HOST_SHLIB_SUFFIX) \
   $(HOST_LIBRARY_PATH)/libcurl-host$(HOST_SHLIB_SUFFIX) \
-  $(HOST_LIBRARY_PATH)/libevent$(HOST_SHLIB_SUFFIX) \
+  $(HOST_LIBRARY_PATH)/libevent-host$(HOST_SHLIB_SUFFIX) \
   $(HOST_LIBRARY_PATH)/libprotobuf-cpp-lite$(HOST_SHLIB_SUFFIX) \
   $(HOST_LIBRARY_PATH)/libssl-host$(HOST_SHLIB_SUFFIX) \
   $(HOST_LIBRARY_PATH)/libz-host$(HOST_SHLIB_SUFFIX) \