remoteproc: fix an typo in fw_elf_get_class code comments

Drop 'and' which looks like unnecessary.

Fixes: 73516a33 ("remoteproc: Add elf helpers to access elf64 and elf32 fields")
Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com>
Link: https://lore.kernel.org/r/20210706142156.952794-1-aisheng.dong@nxp.comSigned-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>

drivers/remoteproc/remoteproc_elf_helpers.h

@@ -15,7 +15,7 @@
  * fw_elf_get_class - Get elf class
  * @fw: the ELF firmware image
  *
- * Note that we use and elf32_hdr to access the class since the start of the
+ * Note that we use elf32_hdr to access the class since the start of the
  * struct is the same for both elf class
  *
  * Return: elf class of the firmware