chore: remove -Xclang flags and tests with padding

Author: krishna2803

libc/cmake/modules/CheckCompilerFeatures.cmake

@@ -65,8 +65,6 @@ foreach(feature IN LISTS ALL_COMPILER_FEATURES)
   set(link_options "")
   if(${feature} STREQUAL "fixed_point")
     list(APPEND compile_options "-ffixed-point")
-  elseif(${feature} STREQUAL "padding_on_unsigned_fixed_point")
-    list(APPEND compile_options "-ffixed-point -Xclang=-fpadding-on-unsigned-fixed-point")
   elseif(${feature} MATCHES "^builtin_" OR
          ${feature} STREQUAL "float16_conversion")
     set(compile_options ${LIBC_COMPILE_OPTIONS_DEFAULT})

libc/src/stdfix/CMakeLists.txt

@@ -118,19 +118,5 @@ foreach(suffix IN ITEMS hr r lr hk k lk uhr ur ulr uhk uk ulk)
     DEPENDS
       libc.src.__support.fixed_point.fx_bits
   )
-  if(LIBC_COMPILER_HAS_PADDING_ON_UNSIGNED_FIXED_POINT)
-    add_entrypoint_object(
-      countls${suffix}_padding_on_unsigned_fixed_point
-      HDRS
-        countls${suffix}.h
-      SRCS
-        countls${suffix}.cpp
-      COMPILE_OPTIONS
-        ${libc_opt_high_flag}
-        -Xclang=-fpadding-on-unsigned-fixed-point
-      DEPENDS
-        libc.src.__support.fixed_point.fx_bits
-    )
-  endif()
 
 endforeach()

libc/test/src/stdfix/CMakeLists.txt

@@ -88,25 +88,6 @@ foreach(suffix IN ITEMS hr r lr hk k lk uhr ur ulr uhk uk ulk)
       libc.src.stdfix.countls${suffix}
       libc.src.__support.fixed_point.fx_rep
       libc.src.__support.fixed_point.fx_bits
-
-    if(LIBC_COMPILER_HAS_PADDING_ON_UNSIGNED_FIXED_POINT)
-      add_libc_test(
-        countls${suffix}_padding_on_unsigned_fixed_point_test
-        SUITE
-          libc-stdfix-tests
-        HDRS
-          CountlsTest.h
-        SRCS
-          countls${suffix}_test.cpp
-        COMPILE_OPTIONS
-          -O3
-          -Xclang=-fpadding-on-unsigned-fixed-point
-        DEPENDS
-          libc.src.stdfix.countls${suffix}_padding_on_unsigned_fixed_point
-          libc.src.__support.fixed_point.fx_rep
-          libc.src.__support.fixed_point.fx_bits
-      )
-    endif()
   )
 endforeach()