Revert "Enable named mmap usage on Android"

This reverts commit 3e9b79ff42de0f5547809354de89e24c7a439e39.

Reason for revert: Android does not allow CoW mappings to be EXEC because it assumes they are text relocations (when selinux enforcing

Change-Id: I1227a2caa18bdad1a46873e4ec420a83cb21821b
Reviewed-on: https://swiftshader-review.googlesource.com/c/SwiftShader/+/52630
Presubmit-Ready: Jason Macnak <natsu@google.com>
Reviewed-by: Nicolas Capens <nicolascapens@google.com>
Commit-Queue: Jason Macnak <natsu@google.com>
Tested-by: Jason Macnak <natsu@google.com>
diff --git a/src/Android.bp b/src/Android.bp
index 22338a1..d8d6ee4 100644
--- a/src/Android.bp
+++ b/src/Android.bp
@@ -201,7 +201,6 @@
     ],
 
     cflags: [
-        "-DREACTOR_ANONYMOUS_MMAP_NAME=swiftshader_jit",
         "-Wno-unused-parameter",
         "-Wno-implicit-fallthrough",
     ],
@@ -234,7 +233,6 @@
     ],
 
     cflags: [
-        "-DREACTOR_ANONYMOUS_MMAP_NAME=swiftshader_jit",
         "-Wno-unused-parameter",
         "-Wno-implicit-fallthrough",
     ],