Revert "trying to add native support"

This reverts commit 0a8e71d76ab4bee3ded7b5e2db3b95fec1796351.

mppProjectWithSerialization.gradle

@@ -18,9 +18,6 @@ kotlin {
     android {
         publishAllLibraryVariants()
     }
-    linuxArm64()
-    linuxX64()
-    mingwX64()
 
     sourceSets {
         commonMain {
@@ -53,18 +50,6 @@ kotlin {
                 implementation libs.android.espresso
             }
         }
-        linuxArm64Test {
-            dependencies {
-                implementation kotlin('test-js')
-                implementation kotlin('test-junit')
-            }
-        }
-        mingwX64Test {
-            dependencies {
-                implementation kotlin('test-js')
-                implementation kotlin('test-junit')
-            }
-        }
 
         androidMain.dependsOn jvmMain
     }