CI: Don't bother building SDL2 debug

Nobody's actually running debug DS builds except me...

scripts/build-dependencies-windows-arm64.bat

@@ -122,12 +122,6 @@ echo Building SDL...
 rmdir /S /Q "%SDL%"
 %SEVENZIP% x "%SDL%.zip" || goto error
 cd "%SDL%" || goto error
-if %DEBUG%==1 (
-  cmake -B build-debug %ARM64TOOLCHAIN% -DCMAKE_BUILD_TYPE=Debug -DCMAKE_INSTALL_PREFIX="%INSTALLDIR%" -DBUILD_SHARED_LIBS=ON -DSDL_SHARED=ON -DSDL_STATIC=OFF -G Ninja || goto error
-  cmake --build build-debug --parallel || goto error
-  ninja -C build-debug install || goto error
-  copy build-debug\SDL2d.pdb "%INSTALLDIR%\bin" || goto error
-)
 cmake -B build %ARM64TOOLCHAIN% -DCMAKE_BUILD_TYPE=Release %FORCEPDB% -DCMAKE_INSTALL_PREFIX="%INSTALLDIR%" -DBUILD_SHARED_LIBS=ON -DSDL_SHARED=ON -DSDL_STATIC=OFF -G Ninja || goto error
 cmake --build build --parallel || goto error
 ninja -C build install || goto error

scripts/build-dependencies-windows-x64.bat

@@ -119,12 +119,6 @@ echo Building SDL...
 rmdir /S /Q "%SDL%"
 %SEVENZIP% x "%SDL%.zip" || goto error
 cd "%SDL%" || goto error
-if %DEBUG%==1 (
-  cmake -B build-debug -DCMAKE_BUILD_TYPE=Debug -DCMAKE_INSTALL_PREFIX="%INSTALLDIR%" -DBUILD_SHARED_LIBS=ON -DSDL_SHARED=ON -DSDL_STATIC=OFF -G Ninja || goto error
-  cmake --build build-debug --parallel || goto error
-  ninja -C build-debug install || goto error
-  copy build-debug\SDL2d.pdb "%INSTALLDIR%\bin" || goto error
-)
 cmake -B build -DCMAKE_BUILD_TYPE=Release %FORCEPDB% -DCMAKE_INSTALL_PREFIX="%INSTALLDIR%" -DBUILD_SHARED_LIBS=ON -DSDL_SHARED=ON -DSDL_STATIC=OFF -G Ninja || goto error
 cmake --build build --parallel || goto error
 ninja -C build install || goto error