package/sdl2_ttf: remove trailing whitespace

Fixes:
 $: ./utils/check-package package/sdl2_ttf/*
 package/sdl2_ttf/sdl2_ttf.hash:1: line contains trailing whitespace
 42 lines processed
 1 warnings generated

Signed-off-by: Pierre-Jean Texier <pjtexier@koncepto.io>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

package/sdl2_ttf/sdl2_ttf.hash

@@ -1,2 +1,2 @@
-# Locally calculated 
+# Locally calculated
 sha256 a9eceb1ad88c1f1545cd7bd28e7cbc0b2c14191d40238f531a15b01b1b22cd33  SDL2_ttf-2.0.15.tar.gz