Drop global data sdhc_adapter for powerpc

The sdhc_adapter of global data has not been used, and we
do not have to use it as global data even we may need it
in the future.

Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>
diff --git a/arch/powerpc/include/asm/global_data.h b/arch/powerpc/include/asm/global_data.h
index 1620fba..192a02d 100644
--- a/arch/powerpc/include/asm/global_data.h
+++ b/arch/powerpc/include/asm/global_data.h
@@ -1,6 +1,7 @@
 /* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * (C) Copyright 2002-2010
+ * Copyright 2020 NXP
  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
  */
 
@@ -15,9 +16,6 @@
 #if defined(CONFIG_FSL_ESDHC)
 	u32 sdhc_clk;
 	u32 sdhc_per_clk;
-#if defined(CONFIG_FSL_ESDHC_ADAPTER_IDENT)
-	u8 sdhc_adapter;
-#endif
 #endif
 #if defined(CONFIG_MPC8xx)
 	unsigned long brg_clk;
diff --git a/drivers/mmc/fsl_esdhc.c b/drivers/mmc/fsl_esdhc.c
index f6e0d43..ba10540 100644
--- a/drivers/mmc/fsl_esdhc.c
+++ b/drivers/mmc/fsl_esdhc.c
@@ -678,7 +678,6 @@
 	u8 value;
 
 	card_id = QIXIS_READ(present) & QIXIS_SDID_MASK;
-	gd->arch.sdhc_adapter = card_id;
 
 	switch (card_id) {
 	case QIXIS_ESDHC_ADAPTER_TYPE_EMMC45: