Storage: remove LFS (#3577)

* Storage: drop internal storage

* Storage: rollback some unnecessary changes

* Storage: rollback some unnecessary changes part 2

* Storage: cleanup various defines and int handling. Ble: allow short connection interval if internal flash is not used.

* Storage: do not return storage if it is not ready

* Save PIN code to RTC, update settings

* Simplify the code, clean up includes

* Rearrange some code

* apps: storage_move_to_sd: conditionally enable with --extra-define=STORAGE_INT_ON_LFS

* Load Desktop settings automatically

* Redirect /any to /ext

* Abolish storage_move_to_sd app

* Remove as many mentions of ANY_PATH as possible

* Fix desktop settings wrongly not loading

* Improve desktop settings handling and strings

* Load BLE settings and keys automatically

* Improve BLE configuration procedure

* Do not load bluetooth keys twice if they were already loaded

* Load dolphin state automatically

* Fix merge artifact

* Load notification settings automatically

* Update desktop settings strings

* Load expansion settings automatically

* Do not use thread signals to reload desktop settings

* Load region data automatically, separate to its own hook

* Improve ble behaviour with no keys

* Fix Dolphin state not resetting correctly

* Add a status check

* Make Desktop save its own settings

* Check result when taking and releasing mutex

* Improve default thread signal handling in FuriEventLoop

* Make bt service in charge of saving settings, add settings api

* Fix a deadlock due to timer thread not receiving time

* Lock core2 when reinitialising bt

* Update clang-format

* Revert "Update clang-format"

This reverts commit d61295ac06.

* Format sources with clang-format

* Revert old stack size for desktop settings

* Allocate big struct dynamically

* Simplify PIN comparison

* Save pointer to storage in Desktop object

* Fix region provisioning for hardware regions

* Remove stale TODO + siimplify code

* Clean up region.c

* Use sizeof instead of macro define

* Limit PIN length to 10 for consistency

* Emit a warning upon usage of /any

* Add delay after finding flipper

* Remove unnecessary delay

* Remove all mentions of STORAGE_INT_ON_LFS

* Remove littlefs and internal storage

* Remove all possible LittleFS mentions

* Fix browser tab in Archive

* Ble: fix connection interval explanation

* Bump API Symbols

* BLE: Update comments interval connection comments

* Storage: clear FuriHalRtcFlagStorageFormatInternal if set

---------

Co-authored-by: Georgii Surkov <georgii.surkov@outlook.com>
Co-authored-by: hedger <hedger@nanode.su>
Co-authored-by: Georgii Surkov <37121527+gsurkov@users.noreply.github.com>

lib/toolbox/crc32_calc.c

@@ -1,11 +1,37 @@
 #include "crc32_calc.h"
-#include <littlefs/lfs_util.h>
 
 #define CRC_DATA_BUFFER_MAX_LEN 512
 
 uint32_t crc32_calc_buffer(uint32_t crc, const void* buffer, size_t size) {
-    // TODO FL-3547: consider removing dependency on LFS
-    return ~lfs_crc(~crc, buffer, size);
+    crc = ~crc;
+
+    static const uint32_t rtable[16] = {
+        0x00000000,
+        0x1db71064,
+        0x3b6e20c8,
+        0x26d930ac,
+        0x76dc4190,
+        0x6b6b51f4,
+        0x4db26158,
+        0x5005713c,
+        0xedb88320,
+        0xf00f9344,
+        0xd6d6a3e8,
+        0xcb61b38c,
+        0x9b64c2b0,
+        0x86d3d2d4,
+        0xa00ae278,
+        0xbdbdf21c,
+    };
+
+    const uint8_t* data = buffer;
+
+    for(size_t i = 0; i < size; i++) {
+        crc = (crc >> 4) ^ rtable[(crc ^ (data[i] >> 0)) & 0xf];
+        crc = (crc >> 4) ^ rtable[(crc ^ (data[i] >> 4)) & 0xf];
+    }
+
+    return ~crc;
 }
 
 uint32_t crc32_calc_file(File* file, const FileCrcProgressCb progress_cb, void* context) {