drm/i915/ns2501: kill pll A enabling hack

With the pipe A quirk properly fixed up for i830M, this shouldn't be
required any longer.
Reviewed-by: NChris Wilson <chris@chris-wilson.co.uk>
Signed-Off-by: NDaniel Vetter <daniel.vetter@ffwll.ch>

drivers/gpu/drm/i915/dvo_ns2501.c

@@ -74,11 +74,6 @@ struct ns2501_priv {
 
 #define NSPTR(d) ((NS2501Ptr)(d->DriverPrivate.ptr))
 
-/*
- * Include the PLL launcher prototype
- */
-extern void intel_enable_pll(struct drm_i915_private *dev_priv, enum pipe pipe);
-
 /*
  * For reasons unclear to me, the ns2501 at least on the Fujitsu/Siemens
  * laptops does not react on the i2c bus unless
@@ -113,8 +108,6 @@ static void enable_dvo(struct intel_dvo_device *dvo)
 	I915_WRITE(DVOC_SRCDIM, 0x400300);	// 1024x768
 	I915_WRITE(FW_BLC, 0x1080304);
 
-	intel_enable_pll(dev_priv, 0);
-
 	I915_WRITE(DVOC, 0x90004084);
 }
 

drivers/gpu/drm/i915/intel_display.c

@@ -1432,7 +1432,7 @@ static void assert_pch_ports_disabled(struct drm_i915_private *dev_priv,
  *
  * Unfortunately needed by dvo_ns2501 since the dvo depends on it running.
  */
-void intel_enable_pll(struct drm_i915_private *dev_priv, enum pipe pipe)
+static void intel_enable_pll(struct drm_i915_private *dev_priv, enum pipe pipe)
 {
 	int reg;
 	u32 val;