Remove unused build flags

 - Fixes for EIGEN_ANDROID_SSE_WR and EIGEN_ANDROID_POSIX_MEMALIGN_WR is
 already in upstream Eigen. After the rebase to 3.3.3, these flags are
 not necessary, and they are not actually doing anything.

Test: mm and CTS BLAS tests pass.
Change-Id: Ie1c15228555326ad63114d0442948f614d35ee60
diff --git a/blas/Android.mk b/blas/Android.mk
index c252c0a..563b7c8 100644
--- a/blas/Android.mk
+++ b/blas/Android.mk
@@ -43,9 +43,6 @@
 	f2c/r_cnjg.c
 
 LOCAL_CLANG := true
-# EIGEN_ANDROID_SSE_WR is for "Eigen Android SSE Work Around"
-# Will be removed after we understand it better.
-LOCAL_CFLAGS += -DEIGEN_ANDROID_SSE_WR
 LOCAL_CFLAGS += -Wno-unused-parameter
 LOCAL_MODULE := libF77blas
 
@@ -58,12 +55,6 @@
 # Build Eigen using API 9 toolchain for RS Support lib.
 include $(CLEAR_VARS)
 LOCAL_CLANG := true
-# EIGEN_ANDROID_SSE_WR is for "Eigen Android SSE Work Around"
-# Will be removed after we understand it better.
-LOCAL_CFLAGS += -DEIGEN_ANDROID_SSE_WR
-# EIGEN_ANDROID_POSIX_MEMALIGN_WR is for "Eigen Android posix_memalign Work Around"
-# Only used for build for low Android API(x86 target) without posix_memalign.
-LOCAL_CFLAGS += -DEIGEN_ANDROID_POSIX_MEMALIGN_WR
 LOCAL_MODULE := libF77blasV8
 LOCAL_SDK_VERSION := 9
 LOCAL_NDK_STL_VARIANT := c++_static