Remove unnecessary empty cases in shell scripts

build-compiler-rt.sh

@@ -79,8 +79,6 @@ else
     MINGW*)
         CMAKE_GENERATOR="MSYS Makefiles"
         ;;
-    *)
-        ;;
     esac
     BUILDCMD=make
 fi

build-libcxx.sh

@@ -73,8 +73,6 @@ else
     MINGW*)
         CMAKE_GENERATOR="MSYS Makefiles"
         ;;
-    *)
-        ;;
     esac
     BUILDCMD=make
 fi

build-lldb-mi.sh

@@ -64,8 +64,6 @@ else
     MINGW*)
         CMAKE_GENERATOR="MSYS Makefiles"
         ;;
-    *)
-        ;;
     esac
     BUILDCMD=make
 fi

build-llvm.sh

@@ -146,8 +146,6 @@ else
     MINGW*)
         CMAKE_GENERATOR="MSYS Makefiles"
         ;;
-    *)
-        ;;
     esac
     BUILDCMD=make
 fi

build-mingw-w64-tools.sh

@@ -68,8 +68,6 @@ else
     MINGW*)
         EXEEXT=.exe
         ;;
-    *)
-        ;;
     esac
 fi
 if [ -n "$MACOS_REDIST" ]; then

build-openmp.sh

@@ -63,8 +63,6 @@ else
     MINGW*)
         CMAKE_GENERATOR="MSYS Makefiles"
         ;;
-    *)
-        ;;
     esac
     BUILDCMD=make
 fi

strip-llvm.sh

@@ -47,8 +47,6 @@ case $(uname) in
 MINGW*)
     EXEEXT=.exe
     ;;
-*)
-    ;;
 esac
 
 cd bin