Re-enable some SYCL tests

This will cause the gitlab CI tests to fail.

Author: WeiqunZhang

Tests/Algebra/GMRES/CMakeLists.txt

@@ -1,7 +1,3 @@
-if (AMReX_SYCL)
-    return()
-endif()
-
 foreach(D IN LISTS AMReX_SPACEDIM)
     set(_sources main.cpp)
     set(_input_files )

Tests/FFT/C2C/CMakeLists.txt

@@ -1,12 +1,4 @@
 foreach(D IN LISTS AMReX_SPACEDIM)
-    if (D EQUAL 2)
-        return()
-    endif()
-
-    if (D EQUAL 3)
-        return()
-    endif()
-
     set(_sources  main.cpp)
 
     set(_input_files)