switching from handling plugin downloading on our own to use vim.pack

tests/dep_spec.lua

@@ -1,33 +1,6 @@
 ---@diagnostic disable: undefined-global, undefined-field
-local dep_ui_format = require("dep.ui.format")
 local dep_spec_man = require("dep.spec")
 
-describe("ui log formatting", function()
-  it("returns the proper chunks to print a formatted line", function()
-    assert.same(
-      {
-        { "[", "" },
-        { "11:22:33", "Boolean" },
-        { "] ", "" },
-        { "file.lua", "String" },
-        { ":", "" },
-        { "1", "Number" },
-        { ": ", "" },
-        { "some fancy message", "" }
-      },
-      dep_ui_format.log_line("[11:22:33] file.lua:1:(vim) some fancy message")
-    )
-
-    -- malformed log line
-    assert.same({},
-      dep_ui_format.log_line("11:22:33] file.lua:1:(vim) some fancy message"))
-
-    -- test nil values
-    assert.same({}, dep_ui_format.log_line(""))
-    assert.same({}, dep_ui_format.log_line(nil))
-  end)
-end)
-
 describe("package specification", function()
   it("gets the package's name", function()
     assert.equal(dep_spec_man.get_name({ "user/package" }), "package")