adjust tone in 1067 to Dunamu 1992 (#212)

Author: bambooforest

raw-data/PH/phoible_inventories.tsv

@@ -8564,12 +8564,8 @@
 				"o"				
 				"ɛ"				
 				"a"				
-				"˦"	"Sprigg (1981); Qu and Tan (1983); Hu et al (1982); Duanmu (1992)"			
-				"˨"	"Sprigg (1981); Qu and Tan (1983); Hu et al (1982); Duanmu (1992)"			
-				"˦ː"	"Qu and Tan (1983); Hu et al (1982); Duanmu (1992)"			
-				"˨ː"	"Qu and Tan (1983); Hu et al (1982); Duanmu (1992)"			
-				"˥˩"	"Hu et al (1982); Duanmu (1992)"			
-				"˧˦˧"	"Hu et al (1982); Duanmu (1992)"			
+				"˦"	"Duanmu (1992)"			
+				"˨˦"	"Duanmu (1992)"			
 
 1068	"ruk"	"Che; Rukuba; Kuche; Bache; Inchazi; Sale"		"i"				"ruk_wilson1996.pdf"
 				"iː"