refactor: remove unnecesary code

Signed-off-by: addrian-77 <lunguadrian30@gmail.com>

Author: addrian-77

tockloader-lib/src/command_impl/probers/erase_apps.rs

@@ -16,40 +16,11 @@ impl CommandEraseApps for ProbeRSConnection {
         }
         let session = self.session.as_mut().expect("Board must be open");
 
-        let mut appaddr: u64 = settings.start_address;
-        // All applications are stored sequentially in memory, so we read until
-        // we fail to parse.
-        let mut total_size: u32 = 0;
-        loop {
-            let mut board_core = session.core(self.target_info.core)?;
-            let mut appdata = vec![0u8; 8];
-
-            board_core.read(appaddr, &mut appdata)?;
-
-            // The first 8 bytes of the application data contain the TBF header
-            // lengths and version.
-            //
-            // Note on expect: `read` always fills up the entire buffer, which
-            // was previously declared as 8 bytes.
-            let app_size: u32 = match parse_tbf_header_lengths(
-                &appdata
-                    .try_into()
-                    .expect("Buffer length must be at least 8 bytes long."),
-            ) {
-                Ok(data) => data.2,
-                _ => break,
-            };
-
-            appaddr += app_size as u64;
-            total_size += app_size;
-        }
-
         let mut loader = session.target().flash_loader();
 
         let address = settings.start_address;
-        // (adi): fill the memory with total_size values of 0x0
-        let buffer = [0x0].repeat(total_size as usize);
-        loader.add_data((address as u32).into(), &buffer)?;
+        // // (adi): a single 0x0 byte is enough to invalidate the header and erase all programs
+        loader.add_data((address as u32).into(), &[0x0])?;
 
         let mut options = DownloadOptions::default();
         options.keep_unwritten_bytes = true;