remove extra end of line

This commit fixes up shared lib builds on linux.

Change-Id: Ib109dc5a226dc5d7874d2e5b333466cbfd4f4661
diff --git a/vp8/exports_enc b/vp8/exports_enc
index 2b4cefa..5ae2098 100644
--- a/vp8/exports_enc
+++ b/vp8/exports_enc
@@ -2,4 +2,3 @@
 text vpx_codec_vp8_cx
 data vpx_codec_vp8x_cx_algo
 text vpx_codec_vp8x_cx
-