Ascii: Remove duplicates from get_distro_colors()

ascii/distro/antergos

@@ -1,19 +1,19 @@
-${c1}              `.-/::/-``
+${c2}              `.-/::/-``
             .-/osssssssso/.
            :osyysssssssyyys+-
         `.+yyyysssssssssyyyyy+.
        `/syyyyyssssssssssyyyyys-`
-      `/yhyyyyysss${c2}++${c1}ssosyyyyhhy/`
-     .ohhhyyyys${c2}o++/+o${c1}so${c2}+${c1}syy${c2}+${c1}shhhho.
-    .shhhhys${c2}oo++//+${c1}sss${c2}+++${c1}yyy${c2}+s${c1}hhhhs.
-   -yhhhhs${c2}+++++++o${c1}ssso${c2}+++${c1}yyy${c2}s+o${c1}hhddy:
-  -yddhhy${c2}o+++++o${c1}syyss${c2}++++${c1}yyy${c2}yooy${c1}hdddy-
- .yddddhs${c2}o++o${c1}syyyyys${c2}+++++${c1}yyhh${c2}sos${c1}hddddy`
-`odddddhyosyhyyyyyy${c2}++++++${c1}yhhhyosddddddo
-.dmdddddhhhhhhhyyyo${c2}+++++${c1}shhhhhohddddmmh.
-ddmmdddddhhhhhhhso${c2}++++++${c1}yhhhhhhdddddmmdy
-dmmmdddddddhhhyso${c2}++++++${c1}shhhhhddddddmmmmh
--dmmmdddddddhhys${c2}o++++o${c1}shhhhdddddddmmmmd-
+      `/yhyyyyysss${c1}++${c2}ssosyyyyhhy/`
+     .ohhhyyyys${c1}o++/+o${c2}so${c1}+${c2}syy${c1}+${c2}shhhho.
+    .shhhhys${c1}oo++//+${c2}sss${c1}+++${c2}yyy${c1}+s${c2}hhhhs.
+   -yhhhhs${c1}+++++++o${c2}ssso${c1}+++${c2}yyy${c1}s+o${c2}hhddy:
+  -yddhhy${c1}o+++++o${c2}syyss${c1}++++${c2}yyy${c1}yooy${c2}hdddy-
+ .yddddhs${c1}o++o${c2}syyyyys${c1}+++++${c2}yyhh${c1}sos${c2}hddddy`
+`odddddhyosyhyyyyyy${c1}++++++${c2}yhhhyosddddddo
+.dmdddddhhhhhhhyyyo${c1}+++++${c2}shhhhhohddddmmh.
+ddmmdddddhhhhhhhso${c1}++++++${c2}yhhhhhhdddddmmdy
+dmmmdddddddhhhyso${c1}++++++${c2}shhhhhddddddmmmmh
+-dmmmdddddddhhys${c1}o++++o${c2}shhhhdddddddmmmmd-
 .smmmmddddddddhhhhhhhhhdddddddddmmmms.
    `+ydmmmdddddddddddddddddddmmmmdy/.
       `.:+ooyyddddddddddddyyso+:.`