remove unused imports

Author: bcpeinhardt

src/gsv.gleam

@@ -1,7 +1,6 @@
 import gleam/dict.{type Dict}
 import gleam/int
 import gleam/list
-import gleam/pair
 import gleam/result
 import gleam/string
 import gsv/internal/ast.{ParseError}

test/gsv_test.gleam

@@ -1,6 +1,5 @@
 import gleam/dict
 import gleam/int
-import gleam/io
 import gleam/list
 import gleam/result
 import gleam/string