[Truffle] Untagged a bunch of passing String specs.

Author: nirvdrum

spec/truffle/tags/core/string/codepoints_tags.txt

@@ -1,7 +1,3 @@
 fails:String#codepoints raises an ArgumentError when self has an invalid encoding and a method is called on the returned Enumerator
 fails:String#codepoints raises an ArgumentError if self's encoding is invalid and a block is given
-fails:String#codepoints returns one codepoint for each character
-fails:String#codepoints works for multibyte characters
-fails:String#codepoints returns the codepoint corresponding to the character's position in the String's encoding
-fails:String#codepoints round-trips to the original String using Integer#chr
 fails:String#codepoints raises an ArgumentError when no block is given if self has an invalid encoding

spec/truffle/tags/core/string/each_codepoint_tags.txt

@@ -1,6 +1,2 @@
 fails:String#each_codepoint raises an ArgumentError when self has an invalid encoding and a method is called on the returned Enumerator
 fails:String#each_codepoint raises an ArgumentError if self's encoding is invalid and a block is given
-fails:String#each_codepoint returns one codepoint for each character
-fails:String#each_codepoint works for multibyte characters
-fails:String#each_codepoint returns the codepoint corresponding to the character's position in the String's encoding
-fails:String#each_codepoint round-trips to the original String using Integer#chr

spec/truffle/tags/core/string/hex_tags.txt

@@ -1,2 +1 @@
-fails:String#ord is equivalent to #codepoints.first
 fails:String#ord raises an ArgumentError if called on an empty String