refactor: cleanup dead code

Author: igorlfs

lua/dap-view/util/hl.lua

@@ -11,19 +11,6 @@ M.hl_range = function(hl_group, start, finish, bufnr)
     vim.hl.range(bufnr or state.bufnr, globals.NAMESPACE, "NvimDapView" .. hl_group, start, finish)
 end
 
----@param row integer
----@param len_path integer
----@param len_lnum integer
-M.highlight_file_name_and_line_number = function(row, len_path, len_lnum)
-    local lnum_start = len_path + 1
-    local lnum_end = lnum_start + len_lnum
-
-    M.hl_range("FileName", { row, 0 }, { row, len_path })
-    M.hl_range("LineNumber", { row, lnum_start }, { row, lnum_end })
-    M.hl_range("Separator", { row, lnum_start - 1 }, { row, lnum_start })
-    M.hl_range("Separator", { row, lnum_end }, { row, lnum_end + 1 })
-end
-
 M.types_to_hl_group = {
     boolean = "Boolean",
     bool = "Boolean",