Delete MapViewOfFile/test1 PAL test (uses removed FILE_FLAG_NO_BUFFERING) (#129089)

`FILE_FLAG_NO_BUFFERING` was removed from the PAL headers, causing
`MapViewOfFile/test1` to fail to compile on all non-Windows platforms.

- Deleted `filemapping_memmgt/MapViewOfFile/test1/MapViewOfFile.cpp` and
its directory
- Removed the test entry from `CMakeLists.txt`, `compilableTests.txt`,
`paltestlist.txt`, and `wasm/index.html`

---------

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

Author: Copilot

src/coreclr/pal/tests/palsuite/CMakeLists.txt

@@ -177,7 +177,6 @@ add_executable_clr(paltests
 #  filemapping_memmgt/GetProcAddress/test1/testlib.cpp
   filemapping_memmgt/GetProcAddress/test2/test2.cpp
 #  filemapping_memmgt/GetProcAddress/test2/testlib.cpp
-  filemapping_memmgt/MapViewOfFile/test1/MapViewOfFile.cpp
   filemapping_memmgt/MapViewOfFile/test2/MapViewOfFile.cpp
   filemapping_memmgt/MapViewOfFile/test3/MapViewOfFile.cpp
   filemapping_memmgt/MapViewOfFile/test4/mapviewoffile.cpp

src/coreclr/pal/tests/palsuite/compilableTests.txt

@@ -113,7 +113,6 @@ filemapping_memmgt/GetModuleFileNameW/test1/paltest_getmodulefilenamew_test1
 filemapping_memmgt/GetModuleFileNameW/test2/paltest_getmodulefilenamew_test2
 filemapping_memmgt/GetProcAddress/test1/paltest_getprocaddress_test1
 filemapping_memmgt/GetProcAddress/test2/paltest_getprocaddress_test2
-filemapping_memmgt/MapViewOfFile/test1/paltest_mapviewoffile_test1
 filemapping_memmgt/MapViewOfFile/test2/paltest_mapviewoffile_test2
 filemapping_memmgt/MapViewOfFile/test3/paltest_mapviewoffile_test3
 filemapping_memmgt/MapViewOfFile/test4/paltest_mapviewoffile_test4

src/coreclr/pal/tests/palsuite/filemapping_memmgt/MapViewOfFile/test1/MapViewOfFile.cpp

@@ -104,7 +104,6 @@ filemapping_memmgt/CreateFileMappingW/test9/paltest_createfilemappingw_test9
 filemapping_memmgt/FreeLibrary/test2/paltest_freelibrary_test2
 filemapping_memmgt/GetModuleFileNameA/test2/paltest_getmodulefilenamea_test2
 filemapping_memmgt/GetModuleFileNameW/test2/paltest_getmodulefilenamew_test2
-filemapping_memmgt/MapViewOfFile/test1/paltest_mapviewoffile_test1
 filemapping_memmgt/MapViewOfFile/test2/paltest_mapviewoffile_test2
 filemapping_memmgt/MapViewOfFile/test3/paltest_mapviewoffile_test3
 filemapping_memmgt/MapViewOfFile/test4/paltest_mapviewoffile_test4

src/coreclr/pal/tests/palsuite/paltestlist.txt

@@ -13,7 +13,6 @@ <h1>PAL Tests WASM</h1>
             "exception_handling/RaiseException", // 3 tests, we don't have stack unwinding available from C native code
             "file_io/WriteFile/test5/paltest_writefile_test5", // infinite loop
             "file_io/SetFilePointer/test7/paltest_setfilepointer_test7", // tries to allocate 4GB of memory in MEMFS when run with chromedriver
-            "filemapping_memmgt/MapViewOfFile/test1/paltest_mapviewoffile_test1", // infinite loop and then chrome crashes
             "filemapping_memmgt/ProbeMemory/ProbeMemory_neg1/paltest_probememory_probememory_neg1",
             "miscellaneous/InterlockedCompareExchange/test2/paltest_interlockedcompareexchange_test2", // MT test
             "miscellaneous/InterlockedDecrement/test2/paltest_interlockeddecrement_test2", // MT test