Remove MU/NU variable star designations

Some of these got into starnames.dat somehow - due to a limitation of Celestia these are rendered as Greek letters, so they shouldn't be here.

data/starnames.dat

@@ -3806,7 +3806,6 @@
 41975:32 Lyn
 41978:FS Cnc
 41980:DK Pyx
-42013:MU Hya
 42036:V451 Vel
 42061:NT Vel
 42068:FN UMa
@@ -4102,7 +4101,6 @@
 44998:XY UMa
 45001:EPS Pyx
 45009:AN Pyx
-45030:NU Hya
 45033:79 Cnc
 45038:SIG2 UMa:13 UMa:Gliese 335
 45058:RS Cnc
@@ -5232,7 +5230,7 @@
 57923:FQ Cam
 57928:KS Mus
 57936:BET Hya
-57939:Groombridge 1830:CF UMa:Gliese 451
+57939:CF UMa:Gliese 451:Groombridge 1830
 57959:Gliese 452
 57978:BB Cen
 58001:Phecda:Phad:GAM UMa:64 UMa
@@ -9167,7 +9165,6 @@
 101341:V729 Cyg
 101356:V341 Aql
 101366:BL Ind
-101369:MU Del
 101393:SZ Cyg
 101405:BK Cap
 101411:V2123 Cyg