Remove support for GopherJS to unblock newer Go versions

The leaves the GopherJS support in cmd/fyne intact given that the plan is to move that tool out of the repository for this release.

.github/workflows/web_tests.yml

@@ -15,7 +15,7 @@ jobs:
         persist-credentials: false
     - uses: WillAbides/[email protected]
       with:
-        go-version: '1.17.x'
+        go-version: '1.19.x'
 
     - name: Get dependencies
       run: sudo apt-get update && sudo apt-get install gcc libgl1-mesa-dev libegl1-mesa-dev libgles2-mesa-dev libx11-dev xorg-dev
@@ -26,9 +26,3 @@ jobs:
         GOARCH: wasm
       working-directory: cmd/fyne_demo
       run: go build
-
-    - name: Build GopherJS and Wasm full website
-      run: |
-        go install github.com/gopherjs/gopherjs@latest
-        go install ./cmd/fyne
-        cd cmd/fyne_demo && fyne package --target=web

go.mod

@@ -17,7 +17,6 @@ require (
 	github.com/go-text/render v0.0.0-20230619120952-35bccb6164b8
 	github.com/go-text/typesetting v0.0.0-20230616162802-9c17dd34aa4a
 	github.com/godbus/dbus/v5 v5.1.0
-	github.com/gopherjs/gopherjs v1.17.2
 	github.com/jackmordaunt/icns/v2 v2.2.6
 	github.com/josephspurrier/goversioninfo v1.4.0
 	github.com/lucor/goinfo v0.9.0
@@ -34,19 +33,20 @@ require (
 	golang.org/x/mod v0.12.0
 	golang.org/x/sys v0.13.0
 	golang.org/x/tools v0.12.0
-	honnef.co/go/js/dom v0.0.0-20210725211120-f030747120f2
 )
 
 require (
 	github.com/akavel/rsrc v0.10.2 // indirect
 	github.com/cpuguy83/go-md2man/v2 v2.0.1 // indirect
 	github.com/davecgh/go-spew v1.1.1 // indirect
 	github.com/golang/freetype v0.0.0-20170609003504-e2365dfdc4a0 // indirect
+	github.com/gopherjs/gopherjs v1.17.2 // indirect
 	github.com/jsummers/gobmp v0.0.0-20151104160322-e2ba15ffa76e // indirect
 	github.com/pmezard/go-difflib v1.0.0 // indirect
 	github.com/russross/blackfriday/v2 v2.1.0 // indirect
 	github.com/tevino/abool v1.2.0 // indirect
 	golang.org/x/net v0.17.0 // indirect
 	golang.org/x/text v0.13.0 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
+	honnef.co/go/js/dom v0.0.0-20210725211120-f030747120f2 // indirect
 )

go.sum

@@ -84,8 +84,6 @@ github.com/fsnotify/fsnotify v1.7.0 h1:8JEhPFa5W2WU7YfeZzPNqzMP6Lwt7L2715Ggo0nos
 github.com/fsnotify/fsnotify v1.7.0/go.mod h1:40Bi/Hjc2AVfZrqy+aj+yEI+/bRxZnMJyTJwOpGvigM=
 github.com/fyne-io/gl-js v0.0.0-20220119005834-d2da28d9ccfe h1:A/wiwvQ0CAjPkuJytaD+SsXkPU0asQ+guQEIg1BJGX4=
 github.com/fyne-io/gl-js v0.0.0-20220119005834-d2da28d9ccfe/go.mod h1:d4clgH0/GrRwWjRzJJQXxT/h1TyuNSfF/X64zb/3Ggg=
-github.com/fyne-io/glfw-js v0.0.0-20220120001248-ee7290d23504 h1:+31CdF/okdokeFNoy9L/2PccG3JFidQT3ev64/r4pYU=
-github.com/fyne-io/glfw-js v0.0.0-20220120001248-ee7290d23504/go.mod h1:gLRWYfYnMA9TONeppRSikMdXlHQ97xVsPojddUv3b/E=
 github.com/fyne-io/glfw-js v0.0.0-20220517201726-bebc2019cd33 h1:0Ayg0/do/sqX2R7NonoLZvWxGrd9utTVf3A0QvCbC88=
 github.com/fyne-io/glfw-js v0.0.0-20220517201726-bebc2019cd33/go.mod h1:gLRWYfYnMA9TONeppRSikMdXlHQ97xVsPojddUv3b/E=
 github.com/fyne-io/image v0.0.0-20220602074514-4956b0afb3d2 h1:hnLq+55b7Zh7/2IRzWCpiTcAvjv/P8ERF+N7+xXbZhk=