Remove trailing space from whats-new-ui.md talk

Change-Id: I9c592bb30f00f50df6215847eeae54fea81d4a0a
diff --git a/sessions/whats-new-ui.md  b/sessions/whats-new-ui.md
similarity index 100%
rename from sessions/whats-new-ui.md 
rename to sessions/whats-new-ui.md