remove false directory

sample-output/OSN/following/part-r-00000

+1	4
+2	1
+3	3
+4	2
+5	3
+6	1
+7	3
+8	3

sample-output/OSN/twc/part-r-00000

+1	2
+2	2
+3	3
+4	3
+5	3
+6	2
+7	2
+8	3

sample-solutions/OSN/tw-count.pig

@@ -20,4 +20,3 @@
 	STORE friends INTO './sample-output/OSN/twc/';
 	STORE followings INTO './sample-output/OSN/following/';
 	STORE outliers INTO './sample-output/OSN/outliers/';
-	STORE friends INTO './sample-output/OSN/twc/';