device-pine64-pinebookpro: remove initfs modules that are builtin (MR 2373)

These drivers are built into the kernel used by this device, and are not
LKMs.

[ci:skip-build] already built successfully in CI

device/testing/device-pine64-pinebookpro/APKBUILD

 # Reference: <https://postmarketos.org/devicepkg>
 pkgname=device-pine64-pinebookpro
 pkgdesc="PINE64 Pinebook Pro"
-pkgver=5
+pkgver=6
 pkgrel=0
 url="https://postmarketos.org"
 license="MIT"
@@ -66,7 +66,7 @@ nonfree_firmware() {
 	mkdir "$subpkgdir"
 }
 sha512sums="
-1955c70871c148e06cad3e8a8929e598c9d1b911cef33e59e699748bc0709fcda9081d891d6c372298b4521349eff7c430c95dc4a2012a4dac1c456306bfd8a2  deviceinfo
+541f572b2816f11e95c9793ccc9a9ea33c0fceb3f970bea3560d2dfa61b1e45c6513c048cecf1f96e46c3d094f66830e560c2e5fb747a5dcb69e45ff2d970644  deviceinfo
 244a321cbc885d7cb90cdc2b905b39efdeaa9d77aa33208aa6b699059a955e5c15247e4dfcd762fd34ece98d686c7da5ffa84acb38044446079f13c193955865  extlinux.conf
 d3988fe83c54228d743f4a8c190e9530404a436a7fbc0b004bf20d3986b502d864717d8cc9c76812e599266bf84cb08f9a86e1bfd220875799c5a022aea588ec  10-pinebookpro.hwdb
 bcae155e24a151d3c098833680b83b6004a329962f115480d560ebe19257eab87286b8a4c194e456c067ca54fb53e59a5a16b022cea13c11135b0855145db563  mem_sleep.conf

device/testing/device-pine64-pinebookpro/deviceinfo

@@ -7,7 +7,7 @@ deviceinfo_manufacturer="PINE64"
 deviceinfo_codename="pine64-pinebookpro"
 deviceinfo_year="2019"
 deviceinfo_dtb=""
-deviceinfo_modules_initfs="panel_simple pwm_bl rockchipdrm dw_mipi_dsi drm_kms_helper gpu_sched dw_wdt analogix_dp drm_panel_orientation_quirks fusb302"
+deviceinfo_modules_initfs="gpu_sched dw_wdt fusb302"
 deviceinfo_arch="aarch64"
 
 # Device related