UPSTREAM: mesa: android: Remove unnecessary dependency tracking rules

The current AOSP master build system breaks building mesa due to the
following error:

external/mesa3d/src/compiler/Android.glsl.gen.mk:94: error:
  writing to readonly directory: "external/mesa3d/src/compiler/glsl/ir.h"

This error is bogus -- nothing "writes" to ir.h -- but the rule is
unnecessary because the generated header that is a dependency of the
non-generated header should be added to LOCAL_GENERATED_SOURCES and this
will track if the dependency needs to be regenerated.

(This change fixes a similar problem affecting nir.h too.)

Cc: Rob Clark <[email protected]>
Cc: Emil Velikov <[email protected]>
Cc: Amit Pundir <[email protected]>
Cc: Sumit Semwal <[email protected]>
Cc: Alistair Strachan <[email protected]>
Cc: Greg Hartman <[email protected]>
Cc: Tapani Pälli <[email protected]>
Cc: Jason Ekstrand <[email protected]>
Reviewed-by: Tapani Pälli <[email protected]>
Reviewed-by: Emil Velikov <[email protected]>
Signed-off-by: Alistair Strachan <[email protected]>
[jstultz: Forward ported and tweaked commit subject]
Signed-off-by: John Stultz <[email protected]>
(cherry picked from commit 0fda3ea)

Author: Alistair Strachan

src/compiler/Android.glsl.gen.mk

@@ -90,8 +90,6 @@ $(intermediates)/glsl/glcpp/glcpp-lex.c: $(LOCAL_PATH)/glsl/glcpp/glcpp-lex.l
 $(intermediates)/glsl/glcpp/glcpp-parse.c: $(LOCAL_PATH)/glsl/glcpp/glcpp-parse.y
 	$(call glsl_local-y-to-c-and-h)
 
-$(LOCAL_PATH)/glsl/ir.h: $(intermediates)/glsl/ir_expression_operation.h
-
 $(intermediates)/glsl/ir_expression_operation.h: $(LOCAL_PATH)/glsl/ir_expression_operation.py
 	@mkdir -p $(dir $@)
 	$(hide) $(MESA_PYTHON2) $< enum > $@

src/compiler/Android.nir.gen.mk

@@ -76,8 +76,6 @@ $(intermediates)/nir/nir_opcodes.h: $(nir_opcodes_h_deps)
 	@mkdir -p $(dir $@)
 	$(hide) $(MESA_PYTHON2) $(nir_opcodes_h_gen) $< > $@
 
-$(LOCAL_PATH)/nir/nir.h: $(intermediates)/nir/nir_opcodes.h
-
 nir_opcodes_c_gen := $(LOCAL_PATH)/nir/nir_opcodes_c.py
 nir_opcodes_c_deps := \
 	$(LOCAL_PATH)/nir/nir_opcodes.py \