Removed trailing spaces in the most relevant files

Command used for the job:
egrep -rl ' $' --include *.c --include *.h --include  *.s --include  *.inc --include  *.txt *  | xargs sed -i 's/\s\+$//g'

Credits to Grant Murphy from Stack Overflow.

sound/songs/se_m_dive.s

@@ -30,7 +30,7 @@ se_m_dive_1:
 	.byte	W04
 	.byte		PAN   , c_v+6
 	.byte		BEND  , c_v-14
-	.byte		N04   
+	.byte		N04
 	.byte	W03
 	.byte		PAN   , c_v+3
 	.byte		BEND  , c_v-11
@@ -90,7 +90,7 @@ se_m_dive_2:
 	.byte		VOL   , 105*se_m_dive_mvl/mxv
 	.byte		N06   , An2 , v040
 	.byte	W06
-	.byte		        Gn2 
+	.byte		        Gn2
 	.byte	W06
 	.byte		        Gs3 , v044
 	.byte	W07