Codechange: vendor the nlohmann-json library (#11290)

.github/workflows/ci-build.yml

@@ -32,11 +32,10 @@ jobs:
         path: /emsdk/upstream/emscripten/cache
         key: 3.1.42-${{ runner.os }}
 
-    - name: Patch Emscripten to support LZMA and nlohmann-json
+    - name: Patch Emscripten to support LZMA
       run: |
         cd /emsdk/upstream/emscripten
         patch -p1 < ${GITHUB_WORKSPACE}/os/emscripten/emsdk-liblzma.patch
-        patch -p1 < ${GITHUB_WORKSPACE}/os/emscripten/emsdk-nlohmann-json.patch
 
     - name: Build (host tools)
       run: |
@@ -118,7 +117,6 @@ jobs:
           libicu-dev \
           liblzma-dev \
           liblzo2-dev \
-          nlohmann-json3-dev \
           ${{ matrix.libraries }} \
           zlib1g-dev \
           # EOF
@@ -215,7 +213,6 @@ jobs:
           liblzma \
           libpng \
           lzo \
-          nlohmann-json \
           zlib \
           # EOF
 
@@ -300,7 +297,6 @@ jobs:
           liblzma \
           libpng \
           lzo \
-          nlohmann-json \
           zlib \
           # EOF
 
@@ -387,7 +383,6 @@ jobs:
           mingw-w64-${{ matrix.arch }}-libpng
           mingw-w64-${{ matrix.arch }}-lld
           mingw-w64-${{ matrix.arch }}-ninja
-          mingw-w64-${{ matrix.arch }}-nlohmann-json
 
     - name: Install OpenGFX
       shell: bash