fix(colors): Remove Confederate from color list (#158)

Just joined an open source project that's using this and [animals](https://github.com/boennemann/animals/blob/master/words.json) to generate some random titles (ex: ExpeditionPorcupine289, BonanzaAlligator021, etc....)

Was confused as hell when I saw 
![image](https://user-images.githubusercontent.com/45471522/218232001-a340bf10-10bf-4d67-9341-15efbf402d92.png)

Will admit that it's an accurate color description for #5c6272, but given that so many people likely use this library for so many different things, having "Confederate" in a widely used list of color titles is likely to have some weird unintended consequences. It'd probably be best to just remove.

src/colornames.csv

@@ -6143,7 +6143,6 @@ Cone Green Blue,#4a6169,
 Coney Island,#6d7e7d,
 Confection,#f4ecda,
 Confectionary,#d4b4d5,
-Confederate,#5c6272,
 Confetti,#ddcb46,
 Confidence,#a98a6b,
 Confident White,#e4dfce,
@@ -30031,4 +30030,4 @@ Zumthor,#cdd5d5,
 Zunda Green,#6bc026,x
 Zuni,#008996,
 Zürich Blue,#248bcc,
-Zürich White,#e6e1d9,
+Zürich White,#e6e1d9,