Remove duplicated style files

The canonical versions of my style files are stored within `src/styles`,
and these are the ones that should be used as they have the latest
changes and have been converted to the YAML format.

This commit removes any styles within the individual talk directories.

src/workshop-tailwind-css/main.style

@@ -1,133 +0,0 @@
-pageSetup:
-    firstTemplate: coverPage
-    height: 18cm
-    margin-bottom: 0cm
-    margin-gutter: 0cm
-    margin-left: 0cm
-    margin-right: 0cm
-    margin-top: 0cm
-    size: null
-    spacing-footer: 2mm
-    spacing-header: 2mm
-    width: 32cm
-
-pageTemplates:
-    coverPage:
-        # background: images/title.png
-        frames: []
-            [12%, 10%, 76%, 75%]
-        showFooter: false
-        showHeader: false
-
-    titlePage:
-        alignment: TA_CENTER
-        frames: []
-            [8%, 8%, 85%, 65%]
-        showFooter: true
-        showHeader: false
-
-    standardPage:
-        frames: []
-            [3%, 3%, 92%, 92%]
-        showFooter: true
-        showHeader: false
-
-    imagePage:
-        alignment: TA_CENTER
-        frames: []
-            [12%, 10%, 76%, 80%]
-        showFooter: true
-        showHeader: false
-
-    outputPage:
-        frames: []
-            [8%, 10%, 82%, 65%]
-        showFooter: false
-        showHeader: false
-
-linkColor: #24608a
-
-fontsAlias:
-    stdMono: Inconsolata-Regular
-    stdMonoBold: Inconsolata-Regular
-    stdMonoItalic: Inconsolata-Regular
-
-styles:
-    normal:
-        fontSize: 24
-        leading: 32
-        textColor: #383745
-
-    bodytext:
-        alignment: TA_LEFT
-
-    heading:
-        fontSize: 20
-        spaceAfter: 16
-        textColor: #24608a
-
-    title:
-        fontSize: 300%
-        parent: heading
-
-    bullet-list:
-        commands: []
-             [LEFTPADDING, [0, 0], [1, -1], 10]
-             [RIGHTPADDING, [0, 0], [1, -1], 0]
-             [VALIGN, [0, 0], [-1, -1], TOP]
-        colWidths: ["20", null]
-        textColor: #aaaaaa
-
-    bullet-list-item:
-        spaceBefore: 14
-        spaceAfter: 0
-
-    titleslideinfo:
-        alignment: TA_CENTER
-        fontSize: 140%
-        parent: normal
-
-    footer:
-        alignment: TA_RIGHT
-        fontName: stdMono
-        fontSize: 20
-        textColor: #24608a
-        rightIndent: 16
-        spaceBefore: 0
-
-    literal:
-        backColor: #eeeeee
-        fontName: stdMono
-
-    code:
-        backColor: white 
-        borderWidth: 0
-        fontSize: 20
-        leading: 24
-        parent: literal
-        spaceBefore: 4
-    
-    blockquote:
-        parent: normal
-        fontName: stdItalic
-        leading: 36
-
-    attribution:
-        parent: normal
-        textColor: #66666
-
-    centred:
-        alignment: TA_CENTER
-        parent: normal
-
-    centredtitle:
-        alignment: TA_CENTER
-        fontName: stdBold
-        fontSize: 48
-        leading: 64
-        parent: heading
-        
-    centredcode:
-        alignment: TA_CENTER
-        backColor: white
-        parent: literal