Revert "Silenced GCC warnings"

This reverts commit 11ac2200.

cmd-peekpoke.c

@@ -15,10 +15,8 @@ int cmd_peek(int argc, char **argv)
 
 	offset = strtoul(argv[0], NULL, 0);
 
-#pragma GCC diagnostic ignored "-Wformat"
 	printf("Value at 0x%08x: ", offset);
 	printf("0x%08x\n", *((volatile uint32_t *)offset));
-#pragma GCC diagnostic pop
 	return 0;
 }
 
@@ -35,10 +33,8 @@ int cmd_poke(int argc, char **argv)
 	offset = strtoul(argv[0], NULL, 0);
 	val = strtoul(argv[1], NULL, 0);
 
-#pragma GCC diagnostic ignored "-Wformat"
 	printf("Setting value at 0x%08x to 0x%08x: ", offset, val);
-#pragma GCC diagnostic pop
-    writel(val, offset);
+	writel(val, offset);
 	printf("Ok\n");
 
 	return 0;

fernly-usb-loader.c

@@ -1175,10 +1175,7 @@ static int fernvale_write_stage3(int serfd, int binfd)
 }
 
 static void cmd_begin(const char *msg) {
-#pragma GCC diagnostic push
-#pragma GCC diagnostic ignored "-Wformat-security"
 	printf(msg);
-#pragma GCC diagnostic pop
 	printf("... ");
 	fflush(stdout);
 }

irq.c

@@ -130,9 +130,7 @@ void irq_dispatch(void)
 	printf("Dispatching IRQs...\n");
 	reg = IRQ_BASE + IRQ_STATUS_OFF;
 	val = readl(reg);
-#pragma GCC diagnostic ignored "-Wformat"
 	printf("Lower Mask: 0x%08x\n", val);
-#pragma GCC diagnostic pop
 
 	for (i = 0; i < 32; i++)
 		if (val & (1 << i))
@@ -140,10 +138,7 @@ void irq_dispatch(void)
 
 	reg += IRQ_BASE + IRQ_STATUS_OFF + 4;
 	val = readl(reg);
-#pragma GCC diagnostic ignored "-Wformat"
-    printf("Upper Mask: 0x%08x\n", val);
-#pragma GCC diagnostic pop
-
+	printf("Upper Mask: 0x%08x\n", val);
 	for (i = 0; i < (__irq_max__ - 32); i++)
 		if (val & (1 << i))
 			irq_dispatch_one(32 + i);

lcd.c

@@ -29,11 +29,11 @@ static void lcd_cmd_slot(uint16_t cmd, uint8_t slot)
 {
 	writel(cmd | 0x800000, LCD_CMD_LIST_ADDR + (slot * 4));
 }
-#pragma GCC diagnostic ignored "-Wunused-function"
 static void lcd_dat_slot(uint16_t dat, uint8_t slot)
 {
 	writel(dat, LCD_CMD_LIST_ADDR + (slot * 4));
 }
+
 static void lcd_setup_gpio(void)
 {
 	/* LPCE0, LPTE0, LPRSTB */