MobileVLCKit: no longer build the i386 slice by default

It can still be requested manually if desired. Note that Xcode 12.5 removed compilation support for it though, so you need a previous release.

buildMobileVLCKit.sh

@@ -233,7 +233,7 @@ buildxcodeproj()
         fi
         if [ "$IOS" = "yes" ]; then
             if [ "$PLATFORM" = "iphonesimulator" ]; then
-                architectures="i386 x86_64 arm64"
+                architectures="x86_64 arm64"
             else
                 architectures="armv7 armv7s arm64"
             fi
@@ -827,7 +827,6 @@ buildMobileKit() {
             fi
             if [ "$IOS" = "yes" ]; then
                 if [ "$PLATFORM" = "iphonesimulator" ]; then
-                    buildLibVLC "i386" "Simulator"
                     buildLibVLC "x86_64" "Simulator"
                     buildLibVLC "aarch64" "Simulator"
                 else