post-merge

* reduce memory footprint by removing all unneeded functions in ota_update.cpp
* don't compile ota_update.cpp when WLED_DISABLE_OTA is defined

wled00/ota_update.h

@@ -9,6 +9,8 @@
 
 #pragma once
 
+#if 0 // WLEDMM not needed - we only want getBootloaderSHA256Hex();
+
 // Platform-specific metadata locations
 #ifdef ESP32
 #define BUILD_METADATA_SECTION ".rodata_custom_desc"
@@ -51,12 +53,14 @@ std::pair<bool, String> getOTAResult(AsyncWebServerRequest *request);
  */
 void handleOTAData(AsyncWebServerRequest *request, size_t index, uint8_t *data, size_t len, bool isFinal);
 
+#endif
+
 #if defined(ARDUINO_ARCH_ESP32) && !defined(WLED_DISABLE_OTA)
 /**
  * Calculate and cache the bootloader SHA256 digest
  * Reads the bootloader from flash at offset 0x1000 and computes SHA256 hash
  */
-void calculateBootloaderSHA256();
+static void calculateBootloaderSHA256();
 
 /**
  * Get bootloader SHA256 as hex string
@@ -68,5 +72,5 @@ String getBootloaderSHA256Hex();
  * Invalidate cached bootloader SHA256 (call after bootloader update)
  * Forces recalculation on next call to calculateBootloaderSHA256 or getBootloaderSHA256Hex
  */
-void invalidateBootloaderSHA256Cache();
+static void invalidateBootloaderSHA256Cache();
 #endif