ART: Completely remove the --compile-pic option.

And the PIC-related fields from image header.

Test: m test-art-host-gtest
Test: testrunner.py --host --optimizing
Test: Pixel 2 XL boots.
Test: testrunner.py --target --optimizing
Bug: 77856493
Change-Id: I3787369378f12d8cd9003bebeae62830a67def33
diff --git a/compiler/optimizing/code_generator_mips.cc b/compiler/optimizing/code_generator_mips.cc
index 1cf5515..1f0e200 100644
--- a/compiler/optimizing/code_generator_mips.cc
+++ b/compiler/optimizing/code_generator_mips.cc
@@ -1766,7 +1766,7 @@
     PcRelativePatchInfo* info_low = NewBootImageIntrinsicPatch(boot_image_reference, info_high);
     EmitPcRelativeAddressPlaceholderHigh(info_high, TMP, /* base */ ZERO);
     __ Addiu(reg, TMP, /* placeholder */ 0x5678, &info_low->label);
-  } else if (Runtime::Current()->IsAotCompiler()) {
+  } else if (GetCompilerOptions().GetCompilePic()) {
     PcRelativePatchInfo* info_high = NewBootImageRelRoPatch(boot_image_reference);
     PcRelativePatchInfo* info_low = NewBootImageRelRoPatch(boot_image_reference, info_high);
     EmitPcRelativeAddressPlaceholderHigh(info_high, reg, /* base */ ZERO);