fix(driver): remove unecessary if conditions in the read function

This changes affect usb_serial_jtag_vfs and cdcacm_vfs read functions.
This commit removes the exit condition on reception of \n character.

components/esp_driver_usb_serial_jtag/src/usb_serial_jtag_vfs.c

@@ -257,9 +257,6 @@ static ssize_t usb_serial_jtag_read(int fd, void* data, size_t size)
         }
         data_c[received] = (char) c;
         ++received;
-        if (c == '\n') {
-            break;
-        }
     }
     _lock_release_recursive(&s_ctx.read_lock);
     if (received > 0) {

components/esp_vfs_console/vfs_cdcacm.c

@@ -225,9 +225,6 @@ static ssize_t cdcacm_read(int fd, void *data, size_t size)
                 break;
             }
             data_c[received++] = (char) c;
-            if (c == '\n') {
-                break;
-            }
         }
     }
     _lock_release_recursive(&s_read_lock);