Remove obsolete ARMV7L CMake defines (#128199)

Remove obsolete ARMV7L-specific host/target CMake define wiring

---------

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: jkotas <6668460+jkotas@users.noreply.github.com>
Co-authored-by: Jan Kotas <jkotas@microsoft.com>

Author: Copilot

eng/native/configureplatform.cmake

@@ -43,7 +43,6 @@ if(CLR_CMAKE_HOST_OS STREQUAL linux)
             set(CLR_CMAKE_HOST_UNIX_AMD64 1)
         elseif(CMAKE_SYSTEM_PROCESSOR STREQUAL armv7l OR CMAKE_SYSTEM_PROCESSOR STREQUAL armv8l)
             set(CLR_CMAKE_HOST_UNIX_ARM 1)
-            set(CLR_CMAKE_HOST_UNIX_ARMV7L 1)
         elseif(CMAKE_SYSTEM_PROCESSOR STREQUAL arm OR CMAKE_SYSTEM_PROCESSOR STREQUAL armv7-a)
             set(CLR_CMAKE_HOST_UNIX_ARM 1)
         elseif(CMAKE_SYSTEM_PROCESSOR STREQUAL armv6 OR CMAKE_SYSTEM_PROCESSOR STREQUAL armv6l)
@@ -238,10 +237,6 @@ endif(CLR_CMAKE_TARGET_OS STREQUAL wasi)
 if(CLR_CMAKE_HOST_UNIX_ARM)
     set(CLR_CMAKE_HOST_ARCH_ARM 1)
     set(CLR_CMAKE_HOST_ARCH "arm")
-
-    if(CLR_CMAKE_HOST_UNIX_ARMV7L)
-        set(CLR_CMAKE_HOST_ARCH_ARMV7L 1)
-    endif()
 elseif(CLR_CMAKE_HOST_UNIX_ARMV6)
     set(CLR_CMAKE_HOST_ARCH_ARMV6 1)
     set(CLR_CMAKE_HOST_ARCH "armv6")
@@ -299,12 +294,6 @@ endif()
 # if target arch is not specified then host & target are same
 if(NOT DEFINED CLR_CMAKE_TARGET_ARCH OR CLR_CMAKE_TARGET_ARCH STREQUAL "" )
   set(CLR_CMAKE_TARGET_ARCH ${CLR_CMAKE_HOST_ARCH})
-
-  # This is required for "arm" targets (CMAKE_SYSTEM_PROCESSOR "armv7l"),
-  # for which this flag otherwise won't be set up below
-  if (CLR_CMAKE_HOST_ARCH_ARMV7L)
-    set(CLR_CMAKE_TARGET_ARCH_ARMV7L 1)
-  endif()
 endif()
 
 # Set target architecture variables
@@ -324,7 +313,6 @@ elseif(CLR_CMAKE_TARGET_ARCH STREQUAL armv6)
     set(CLR_CMAKE_TARGET_ARCH_ARMV6 1)
 elseif(CLR_CMAKE_TARGET_ARCH STREQUAL armel)
     set(CLR_CMAKE_TARGET_ARCH_ARM 1)
-    set(CLR_CMAKE_TARGET_ARCH_ARMV7L 1)
     set(ARM_SOFTFP 1)
 elseif(CLR_CMAKE_TARGET_ARCH STREQUAL s390x)
     set(CLR_CMAKE_TARGET_ARCH_S390X 1)

src/native/libs/CMakeLists.txt

@@ -83,20 +83,14 @@ if (CLR_CMAKE_TARGET_UNIX OR CLR_CMAKE_TARGET_BROWSER OR CLR_CMAKE_TARGET_WASI)
 
         add_definitions(-DDEBUG)
     elseif (UPPERCASE_CMAKE_BUILD_TYPE STREQUAL RELEASE)
-        # Use O1 option when the clang version is smaller than 3.9
-        # Otherwise use O3 option in release build
-        if (CLR_CMAKE_TARGET_ARCH_ARMV7L AND DEFINED ENV{CROSSCOMPILE} AND CMAKE_C_COMPILER_VERSION VERSION_LESS 3.9)
-            add_compile_options (-O1)
-        else ()
-            if(CLR_CMAKE_TARGET_ANDROID)
-                # -O2 optimization generates faster/smaller code on Android
-                # TODO: This duplicates the settings in eng/native/configureoptimization.cmake, we should unify it
-                add_compile_options (-O2)
-            elseif (CLR_CMAKE_TARGET_BROWSER)
-                add_compile_options (-Oz)
-            else()
-                add_compile_options (-O3)
-            endif ()
+        if(CLR_CMAKE_TARGET_ANDROID)
+            # -O2 optimization generates faster/smaller code on Android
+            # TODO: This duplicates the settings in eng/native/configureoptimization.cmake, we should unify it
+            add_compile_options (-O2)
+        elseif (CLR_CMAKE_TARGET_BROWSER)
+            add_compile_options (-Oz)
+        else()
+            add_compile_options (-O3)
         endif ()
     else ()
         message(FATAL_ERROR "Unknown build type. Set CMAKE_BUILD_TYPE to DEBUG or RELEASE.")