Revert remaining go/ql/test changes

Author: Copilot

go/ql/test/extractor-tests/go-mod-comments/go.mod

@@ -1,7 +1,6 @@
 // atthetop
 module smowton/test // endofline
-
 // onitsown
 go 1.14
-
 // afterwards
+

go/ql/test/go.mod

@@ -1,3 +1,4 @@
 module github.com/github/codeql-go/ql/test
 
 go 1.21
+

go/ql/test/library-tests/semmle/go/dependencies/codeql-go/go.mod

@@ -1,3 +1,8 @@
 module github.com/github/codeql-go
 
 go 1.13
+
+require (
+	golang.org/x/mod v0.2.0
+	golang.org/x/tools v0.0.0-20200302225559-9b52d559c609
+)

go/ql/test/library-tests/semmle/go/dependencies/sweb/go.mod

@@ -35,3 +35,29 @@ replace google.golang.org/appengine => github.com/golang/appengine v1.6.1
 replace golang.org/x/mobile => github.com/golang/mobile v0.0.0-20190607214518-6fa95d984e88
 
 replace golang.org/x/image => github.com/golang/image v0.0.0-20190622003408-7e034cad6442
+
+require (
+	github.com/Joker/jade v1.0.0 // indirect
+	github.com/Shopify/goreferrer v0.0.0-20181106222321-ec9c9a553398 // indirect
+	github.com/aymerick/raymond v2.0.2+incompatible // indirect
+	github.com/eknkc/amber v0.0.0-20171010120322-cdade1c07385 // indirect
+	github.com/fatih/structs v1.1.0 // indirect
+	github.com/flosch/pongo2 v0.0.0-20190707114632-bbf5a6c351f4 // indirect
+	github.com/iris-contrib/blackfriday v2.0.0+incompatible // indirect
+	github.com/iris-contrib/formBinder v0.0.0-20190104093907-fbd5963f41e1 // indirect
+	github.com/iris-contrib/go.uuid v2.0.0+incompatible // indirect
+	github.com/json-iterator/go v1.1.6 // indirect
+	github.com/kataras/golog v0.0.0-20190624001437-99c81de45f40 // indirect
+	github.com/kataras/iris v11.1.1+incompatible
+	github.com/kataras/pio v0.0.0-20190103105442-ea782b38602d // indirect
+	github.com/klauspost/compress v1.7.2 // indirect
+	github.com/klauspost/cpuid v1.2.1 // indirect
+	github.com/microcosm-cc/bluemonday v1.0.2 // indirect
+	github.com/mitchellh/go-homedir v1.1.0
+	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
+	github.com/modern-go/reflect2 v1.0.1 // indirect
+	github.com/ryanuber/columnize v2.1.0+incompatible // indirect
+	github.com/shurcooL/sanitized_anchor_name v1.0.0 // indirect
+	github.com/spf13/cobra v0.0.5
+	github.com/spf13/viper v1.4.0
+)