i2c: tegra: remove unused rst

Since commit 56344e2 ("i2c: tegra: Fix reset error handling with
ACPI") replace reset_control_reset() with device_reset(), the rst
is no longer used, remove it.

Signed-off-by: Guixin Liu <kanie@linux.alibaba.com>
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
Link: https://lore.kernel.org/r/20251217081601.93856-1-kanie@linux.alibaba.com

Author: guixinliu1995

drivers/i2c/busses/i2c-tegra.c

@@ -240,7 +240,6 @@ struct tegra_i2c_hw_feature {
  * @div_clk: clock reference for div clock of I2C controller
  * @clocks: array of I2C controller clocks
  * @nclocks: number of clocks in the array
- * @rst: reset control for the I2C controller
  * @base: ioremapped registers cookie
  * @base_phys: physical base address of the I2C controller
  * @cont_id: I2C controller ID, used for packet header
@@ -269,7 +268,6 @@ struct tegra_i2c_dev {
 	struct i2c_adapter adapter;
 
 	const struct tegra_i2c_hw_feature *hw;
-	struct reset_control *rst;
 	unsigned int cont_id;
 	unsigned int irq;