usb: phy: remove unused APIs from Tegra PHY.

As tegra_usb_phy_clk_disable/enable() are not being
used, removing them.

Signed-off-by: Venu Byravarasu <vbyravarasu@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
diff --git a/drivers/usb/phy/tegra_usb_phy.c b/drivers/usb/phy/tegra_usb_phy.c
index 2d3cae9..3059384 100644
--- a/drivers/usb/phy/tegra_usb_phy.c
+++ b/drivers/usb/phy/tegra_usb_phy.c
@@ -825,16 +825,3 @@
 }
 EXPORT_SYMBOL_GPL(tegra_ehci_phy_restore_end);
 
-void tegra_usb_phy_clk_disable(struct tegra_usb_phy *phy)
-{
-	if (!phy_is_ulpi(phy))
-		utmi_phy_clk_disable(phy);
-}
-EXPORT_SYMBOL_GPL(tegra_usb_phy_clk_disable);
-
-void tegra_usb_phy_clk_enable(struct tegra_usb_phy *phy)
-{
-	if (!phy_is_ulpi(phy))
-		utmi_phy_clk_enable(phy);
-}
-EXPORT_SYMBOL_GPL(tegra_usb_phy_clk_enable);
diff --git a/include/linux/usb/tegra_usb_phy.h b/include/linux/usb/tegra_usb_phy.h
index 176b1ca..34e6355 100644
--- a/include/linux/usb/tegra_usb_phy.h
+++ b/include/linux/usb/tegra_usb_phy.h
@@ -64,10 +64,6 @@
 struct tegra_usb_phy *tegra_usb_phy_open(struct device *dev, int instance,
 	void __iomem *regs, void *config, enum tegra_usb_phy_mode phy_mode);
 
-void tegra_usb_phy_clk_disable(struct tegra_usb_phy *phy);
-
-void tegra_usb_phy_clk_enable(struct tegra_usb_phy *phy);
-
 void tegra_usb_phy_preresume(struct tegra_usb_phy *phy);
 
 void tegra_usb_phy_postresume(struct tegra_usb_phy *phy);