chore: Remove the include folder and updated copy_opencv.sh (#2764)

Author: yashk2000

.gitignore

@@ -9,6 +9,7 @@ build
 /docs/keystore
 /app/src/main/3rdparty/
 /app/src/main/jniLibs/
+/app/src/main/jni/include
 libopencv_*
 viewflow/
 keystore.properties

scripts/copy_opencv.sh

@@ -1,6 +1,5 @@
 #!/usr/bin/env bash
 mkdir app/src/main/3rdparty
-rm -rf app/src/main/jni/include
 mkdir app/src/main/jniLibs
 mkdir app/src/main/staticlibs
 mkdir app/src/main/jni/include